Medical imaging system and workstation and X-ray detector thereof

ABSTRACT

A workstation includes a receiver configured to receive identification information of an X-ray detector from the X-ray detector; a controller configured to set assign indicator information of the X-ray detector, based on the received identification information of the X-ray detector; an output unit configured to display the set assign indicator information of the X-ray detector; and a transmitter configured to transmit the set assign indicator information of the X-ray detector to the X-ray detector. The X-ray detector includes a transmitter configured to transmit the identification information of the X-ray detector to the workstation; a receiver configured to receive the assign indicator information from the workstation after the transmitter transmits the identification information of the X-ray detector to the workstation; and an output unit configured to display an assign indicator based on the received assign indicator information.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the benefit of U.S. Provisional PatentApplication No. 61/901,692, filed on Nov. 8, 2013, in the U.S. Patentand Trademark Office, and priority from Korean Patent Application No.2013-0147526, filed on Nov. 29, 2013, and Korean Patent Application No.2014-0118017, filed on Sep. 4, 2014, and Korean Patent Application No.2014-0153394, filed on Nov. 6, 2014, in the Korean Intellectual PropertyOffice, the disclosures of which are incorporated herein by reference intheir entirety.

BACKGROUND

1. Field

Apparatuses and methods consistent with exemplary embodiments relate toa medical imaging system and workstation and an X-ray detector thereof,and more particularly, to a workstation capable of setting assignindicator information of an X-ray detector, and an X-ray detectorcapable of displaying an assign indicator.

2. Description of Related Art

In general, X-rays are electromagnetic waves which have a wavelength of0.01 to 100 Å and which can pass through objects. Thus, they may becommonly used in a wide range of applications, such as medical equipmentthat take images of the inside of a living body and non-destructivetesting equipment for industrial use.

X-ray photographing apparatuses using X-rays allow X-rays emitted by anX-ray tube (or X-ray source) to pass through an object, and detect adifference between the intensities of the passed X-rays by using anX-ray detector to thereby identify the internal structure of the object.X-ray imaging apparatuses are able to easily identify the internalstructure of an object by using the principle that the transmissioncoefficient of X-rays varies depending on the density of the object andthe atomic number the atoms of the object. As the wavelength of an X-raybecomes shorter, the transmission coefficient of X-rays increases and apicture on a screen becomes clearer.

SUMMARY

One or more exemplary embodiments include a workstation capable ofcontrolling an assign indicator of an X-ray detector, and an X-raydetector that may be efficiently distinguished from other X-raydetectors by displaying the assign indicator.

Additional aspects will be set forth in part in the description whichfollows and, in part, will be apparent from the description, or may belearned by practice of the exemplary embodiments.

According to an aspect of an exemplary embodiment, there is provided aworkstation including: a receiver configured to receive identificationinformation of an X-ray detector from the X-ray detector; a controllerconfigured to set assign indicator information of the X-ray detector,based on the received identification information of the X-ray detector;an output unit configured to display the set assign indicatorinformation of the X-ray detector; and a transmitter configured totransmit the set assign indicator information of the X-ray detector tothe X-ray detector.

The workstation may further include an input unit configured to receivean input for re-setting the set assign indicator information of theX-ray detector. The controller may be further configured to re-set theset assign indicator information in response to the input.

The identification information of the X-ray detector may include atleast one selected from unique information including at least one of aserial number (SN) and an Internet Protocol (IP) address of the X-raydetector; and specification information including at least one of a sizeof the X-ray detector and a type of a receptor with which the X-raydetector is combinable.

The identification information of the X-ray detector may further includeposition information of the X-ray detector, and the controller may befurther configured to authenticate the X-ray detector based on at leastone selected from the unique information and the specificationinformation of the X-ray detector, and set assign indicator informationof the authenticated X-ray detector, based on the position informationof the authenticated X-ray detector.

The position information of the X-ray detector may include at least oneselected from information indicating that the X-ray detector has beencombined with a stand type receptor, information indicating that theX-ray detector has been combined with a table type receptor, andinformation indicating that the X-ray detector has not been combinedwith any receptors.

The identification information of the X-ray detector may further includeidentification information of a network to which the X-ray detector hasbeen connected, and the controller may be further configured toauthenticate the X-ray detector based on at least one selected from theunique information and the specification information of the X-raydetector, and set assign indicator information of the authenticatedX-ray detector, based on the identification information of the networkto which the authenticated X-ray detector has been connected.

The identification information of the network to which the X-raydetector has been connected may include a service set identifier (SSID)of the network.

The output unit may display an X-ray detector icon that represents theidentification information of the X-ray detector and the assignindicator information of the X-ray detector.

The receiver may be further configured to receive state information ofthe X-ray detector, and the output unit may be further configured todisplay an X-ray detector icon that represents the state information ofthe X-ray detector and the assign indicator information of the X-raydetector.

The output unit may be further configured to the X-ray detector iconflicker according to the state information of the X-ray detector.

The state information of the X-ray detector may include at least oneselected from information about a residual battery capacity of the X-raydetector, information about a communication sensitivity of the X-raydetector, and information about whether the X-ray detector has beenactivated.

The receiver and the transmitter may be further configured tocommunicate with an external apparatus via a wireless network.

The set assign indicator information may include information thatindicates at least one selected from a character, a number, a symbol, acolor, and an image.

According to an aspect of another exemplary embodiment, there isprovided an X-ray detector including: a transmitter configured totransmit identification information of the X-ray detector to aworkstation; a receiver configured to receive assign indicatorinformation from the workstation after the transmitter transmits theidentification information to the workstation; and an output unitconfigured to display an assign indicator based on the received assignindicator information.

The receiver may be further configured to receive re-setting informationused to reset the displayed assign indicator, and the output unit may befurther configured to change the assign indicator based on the receivedre-setting information and display the changed assign indicator.

The transmitted identification information may include at least oneselected from unique information including at least one of a serialnumber (SN) and an Internet Protocol (IP) address of the X-ray detector,and specification information including at least one of a size of theX-ray detector and a type of a receptor with which the X-ray detector iscombinable.

The transmitted identification information may further include positioninformation of the X-ray detector.

The position information of the X-ray detector may include at least oneselected from information indicating that the X-ray detector has beencombined with a stand type receptor, information indicating that theX-ray detector has been combined with a table type receptor, andinformation indicating that the X-ray detector has not been combinedwith any receptors.

The transmitted identification information may further includeidentification information of a network to which the X-ray detector hasbeen connected.

The identification information of the network to which the X-raydetector has been connected may include a service set identifier (SSID)of the network.

The X-ray detector may further include a controller configured toacquire state information of the X-ray detector. The output unit may befurther configured to display the acquired state information of theX-ray detector and the assign indicator.

The acquired state information of the X-ray detector may include atleast one selected from information about a residual battery capacity ofthe X-ray detector, information about a communication sensitivity of theX-ray detector, and information about whether the X-ray detector hasbeen activated.

The output unit may be further configured to make the assign indicatorflicker according to the received state information of the X-raydetector.

The receiver and the transmitter may be further configured tocommunicate with an external apparatus via a wireless network.

The received assign indicator information may include information thatindicates at least one selected from a character, a number, a symbol, acolor, and an image.

The output unit may include a light source configured to generate lightof a color indicated by the assign indicator information; and an opticalwaveguide which is positioned on at least one edge of the X-ray detectorand guides the light to propagate in a certain direction.

The optical waveguide may include a first reflector for guiding thelight to propagate in a certain direction within the optical waveguide.

One side of the optical waveguide may include an irregularity forpropagating the light to outside of the optical waveguide.

The irregularity formed on the one side of the optical waveguide may berepeated, and a repetition interval of the irregularity may shorten in adirection away from the light source.

The X-ray detector may further include a second reflector which ispositioned on one side of the optical waveguide and propagates the lightto outside of the optical waveguide.

According to an aspect of another exemplary embodiment, there isprovided an X-ray apparatus including: an X-ray radiation unitconfigured to radiate an X-ray to an object; and a manipulation unitconfigured to manipulate the X-ray radiation unit. The manipulation unitmay include: a receiver configured to receive identification informationof an X-ray detector from the X-ray detector; a controller configured toset assign indicator information of the X-ray detector, based on thereceived identification information of the X-ray detector; an outputunit configured to display the set assign indicator information of theX-ray detector; and a transmitter configured to transmit the set assignindicator information of the X-ray detector to the X-ray detector.

According to an aspect of another exemplary embodiment, there isprovided an X-ray system including: an X-ray apparatus including anX-ray radiation unit and an X-ray detector; and a workstation configuredto control the X-ray apparatus.

The workstation may include a receiver configured to receiveidentification information of the X-ray detector from the X-raydetector; a controller configured to set assign indicator information ofthe X-ray detector, based on the received identification information ofthe X-ray detector; an output unit configured to display the set assignindicator information of the X-ray detector; and a transmitterconfigured to transmit the set assign indicator information of the X-raydetector to the X-ray detector.

The X-ray detector may include a transmitter configured to transmitidentification information of the X-ray detector to the workstation; areceiver configured to receive assign indicator information from theworkstation after the transmitter transmits the identificationinformation of the X-ray detector to the workstation; and an output unitconfigured to display an assign indicator based on the received assignindicator information.

According to an aspect of another exemplary embodiment, there isprovided a method of capturing an X-ray image including: setting assignindicator information of an X-ray detector, based on identificationinformation of the X-ray detector; displaying an assign indicator on theX-ray detector, based on the set assign indicator information of theX-ray detector; and capturing the X-ray image by using the X-raydetector on which the assign indicator has been displayed.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and/or other aspects will become apparent and more readilyappreciated from the following description of the exemplary embodiments,taken in conjunction with the accompanying drawings in which:

FIG. 1 is a block diagram of an X-ray system;

FIG. 2 is a perspective view of a fixed type X-ray apparatus;

FIG. 3 is a diagram showing a configuration of a mobile X-ray apparatuscapable of performing an X-ray photographing operation regardless of aplace where the photographing operation is performed;

FIG. 4 is a diagram showing a detailed configuration of an indirect typedetector;

FIG. 5 is a diagram for explaining respective operations of aworkstation and an X-ray detector according to an exemplary embodiment;

FIG. 6 is a schematic diagram of a workstation according to an exemplaryembodiment;

FIG. 7 is a block diagram of an X-ray detector according to an exemplaryembodiment;

FIG. 8 illustrates an operation in which the workstation of FIG. 6 setsassign indicator information of an X-ray detector based on positioninformation of the X-ray detector;

FIG. 9 illustrates respective operations of X-ray detectors according tothe assign indicator information of FIG. 8;

FIG. 10 illustrates an operation in which the workstation of FIG. 6 setsassign indicator information of an X-ray detector based on uniqueinformation of the X-ray detector;

FIG. 11 illustrates respective operations of X-ray detectors accordingto the assign indicator information of FIG. 10;

FIG. 12 illustrates an operation in which the workstation of FIG. 6 setsassign indicator information of an X-ray detector based onidentification information of a network to which the X-ray detector hasbeen connected;

FIG. 13 illustrates respective operations of X-ray detectors accordingto the assign indicator information of FIG. 12;

FIG. 14 is a diagram for describing respective operations of aworkstation and an X-ray detector according to another exemplaryembodiment;

FIGS. 15A and 15B illustrate X-ray detectors on each of which an assignindicator and state information are displayed;

FIG. 16 illustrates an operation in which the workstation of FIG. 6displays an X-ray detector icon, according to an exemplary embodiment;

FIGS. 17A-18B illustrate an operation in which the workstation of FIG. 6activates an X-ray detector, according to one or more exemplaryembodiments;

FIGS. 19A-19C illustrate an X-ray detector and an optical waveguideincluded therein, according to an exemplary embodiment;

FIGS. 20A and 20B are cross-sectional views of optical waveguidesaccording to another exemplary embodiment; and

FIG. 21 is a flowchart of a method of capturing an X-ray image,according to an exemplary embodiment.

DETAILED DESCRIPTION

Certain exemplary embodiments will now be described in greater detailwith reference to the accompanying drawings. The matters defined in thespecification, such as detailed construction and elements, are providedto assist in a comprehensive understanding of the exemplary embodiments.The invention may, however, be embodied in many different forms andshould not be construed as being limited to the exemplary embodimentsset forth herein; rather, these exemplary embodiments are provided sothat this disclosure will be thorough and complete, and will fullyconvey the concept of the invention to those skilled in the art, thescope of which is defined by the appended claims. Also, well knownfunctions or constructions are not described in detail since they wouldobscure the exemplary embodiments with unnecessary detail.

Hereinafter, the terms used in the specification will be brieflydescribed, and then the exemplary embodiments will be described indetail.

Although certain general terms widely used at present were selected fordescribing the exemplary embodiments in consideration of the functionsthereof, these general terms may vary according to intentions of one ofordinary skill in the art, case precedents, the advent of newtechnologies, and the like. Terms arbitrarily selected by the applicantof the exemplary embodiments may also be used in a specific case. Inthis case, their meanings are given in the detailed description of theexemplary embodiments. Hence, these terms are defined based on theirmeanings and the contents of the entire specification, not by simplystating the terms.

Throughout the specification, an “image” may refer to multi-dimensionaldata formed of discrete image elements (e.g., pixels in atwo-dimensional (2D) image and voxels in a three-dimensional (3D)image). For example, an image may be a medical image of an objectacquired by an X-ray apparatus, a computed tomography (CT) apparatus, amagnetic resonance imaging (MRI) apparatus, an ultrasound diagnosisapparatus, or another medical imaging apparatus.

In addition, an “object” may be a human, an animal, or a part of a humanor animal. For example, the object may include an organ (for example,the liver, the heart, the womb, the brain, breasts, or the abdomen),blood vessels, or a combination thereof. The object may be a phantom.The phantom denotes a material having a volume, a density, and aneffective atomic number that are approximately the same as those of aliving organism. For example, the phantom may be a spherical phantomhaving similar properties to those of the human body.

Furthermore, a “user” may be, but is not limited to, a medical expert,for example, a medical doctor, a nurse, a medical laboratorytechnologist, or a medical imaging expert, or a technician who repairsmedical apparatuses.

An X-ray apparatus is a medical imaging apparatus that acquires imagesof internal structures of an object by transmitting an X-ray through thehuman body. The X-ray apparatus may acquire medical images of an objectmore simply and within a shorter time than other medical imagingapparatuses including an MRI apparatus and a CT apparatus. Therefore,the X-ray apparatus is widely used in simple chest photographing, simpleabdomen photographing, simple skeleton photographing, simple nasalsinuses photographing, simple neck soft tissue photographing, breastphotographing, etc.

FIG. 1 is a block diagram of an X-ray system 1000.

Referring to FIG. 1, the X-ray system 1000 includes an X-ray apparatus100 and a workstation 110. The X-ray apparatus 100 shown in FIG. 1 maybe a fixed-type X-ray apparatus or a mobile X-ray apparatus. The X-rayapparatus 100 may include an X-ray radiation unit 120, a high voltagegenerator 121, a detector 130, a manipulation unit 140, and a controller150. The controller 150 may control overall operations of the X-rayapparatus 100.

The high voltage generator 121 generates a high voltage for generatingX-rays, and applies the high voltage to an X-ray source 122.

The X-ray radiation unit 120 includes the X-ray source 122 receiving thehigh voltage from the high voltage generator 121 to generate and radiateX-rays, and a collimator 123 for guiding a path of the X-ray radiatedfrom the X-ray source 122 and adjusting an irradiation region radiatedby the X-ray.

The X-ray source 122 includes an X-ray tube that may be realized as avacuum tube diode including a cathode and an anode. An inside of theX-ray tube may be set as a high vacuum state of about 10 mmHg, and afilament of the anode is heated to a high temperature to generatethermal electrons. The filament may be a tungsten filament, and avoltage of about 10V and a current of about 3 to 5 A may be applied toan electric wire connected to the filament to heat the filament.

In addition, when a high voltage of about 10 to about 300 kVp is appliedbetween the cathode and the anode, the thermal electrons are acceleratedto collide with a target material of the cathode, and then, an X-ray isgenerated. The X-ray is radiated to the outside via a window, and thewindow may be formed of a beryllium thin film. In this case, most of theenergy of the electrons colliding with the target material is consumedas heat, and remaining energy is converted into the X-ray.

The cathode may be mainly formed of copper, and the target material isdisposed opposite to the anode. The target material may be a highresistive material such as chromium (Cr), iron (Fe), cobalt (Co), nickel(Ni), tungsten (W), or molybdenum (Mo). The target material may berotated by a rotating field. When the target material is rotated, anelectron impact area is increased, and a heat accumulation rate per unitarea may be increased to be at least ten times greater than that of acase where the target material is fixed.

The voltage applied between the cathode and the anode of the X-ray tubeis referred to as a tube voltage, and the tube voltage is applied fromthe high voltage generator 121 and a magnitude of the tube voltage maybe expressed by a crest value (kVp). When the tube voltage increases, avelocity of the thermal electrons increases, and accordingly, an energyof the X-ray (that is, energy of the photons) that is generated when thethermal electrons collide with the target material is increased. Thecurrent flowing in the X-ray tube is referred to as a tube current thatmay be expressed as an average value (mA). When the tube currentincreases, the number of thermal electrons emitted from the filament isincreased, and accordingly, the X-ray dose (that is, the number of X-rayphotons) generated when the thermal electrons collide with the targetmaterial is increased.

Therefore, the energy of the X-ray may be adjusted according to the tubevoltage, and the intensity of the X-ray or the X-ray dose may beadjusted according to the tube current and the X-ray exposure time.

The detector 130 detects an X-ray that is radiated from the X-rayradiation unit 120 and has been transmitted through an object. Thedetector 130 may be a digital detector. The detector 130 may beimplemented by using a thin film transistor (TFT) or a charge coupleddevice (CCD). Although the detector 130 is included in the X-rayapparatus 100 in FIG. 1, the detector 130 may be an X-ray detector thatis a separate device capable of being connected to or separated from theX-ray apparatus 100.

The X-ray apparatus 100 may further include a manipulation unit 140 forproviding a user with an interface for manipulating the X-ray apparatus100. The manipulation unit 140 may include an output unit 141 and aninput unit 142. The input unit 142 may receive, from a user, a commandfor manipulating the X-ray apparatus 100 and various types ofinformation related to X-ray photographing. The controller 150 maycontrol or manipulate the X-ray apparatus 100 according to theinformation received by the input unit 142. The output unit 141 mayoutput sound representing information related to a photographingoperation such as the X-ray radiation under the control of thecontroller 150.

The workstation 110 and the X-ray apparatus 100 may be connected to eachother by wire or wirelessly. When they are connected to each otherwirelessly, a device (not shown) for synchronizing clock signals witheach other may be further included. The workstation 110 and the X-rayapparatus 100 may exist within physically separate spaces.

The workstation 110 may include an output unit 111, an input unit 112,and a controller 113. The output unit 111 and the input unit 112 providea user with an interface for manipulating the workstation 110 and theX-ray apparatus 100. The controller 113 may control the workstation 110and the X-ray apparatus 100.

The X-ray apparatus 100 may be controlled via the workstation 110 or maybe controlled by the controller 150 included in the X-ray apparatus 100.Accordingly, a user may control the X-ray apparatus 100 via theworkstation 110 or may control the X-ray apparatus 100 via themanipulation unit 140 and the controller 150 included in the X-rayapparatus 100. In other words, a user may remotely control the X-rayapparatus 100 via the workstation 110 or may directly control the X-rayapparatus 100.

Although the controller 113 of the workstation 110 is separate from thecontroller 150 of the X-ray apparatus 100 in FIG. 1, FIG. 1 is only anexample. As another example, the controllers 113 and 150 may beintegrated into a single controller, and the single controller may beincluded in only one of the workstation 110 and the X-ray apparatus 100.Hereinafter, the controllers 113 and 150 may denote the controller 113of the workstation 110 and/or the controller 150 of the X-ray apparatus100.

The output unit 111 and the input unit 112 of the workstation 110 mayprovide a user with an interface for manipulating the X-ray apparatus100, and the output unit 141 and the input unit 142 of the X-rayapparatus 100 may also provide a user with an interface for manipulatingthe X-ray apparatus 100. Although the workstation 110 and the X-rayradiation unit 100 include the output units 111 and 141, respectively,and the input units 112 and 142, respectively, in FIG. 1, exemplaryembodiments are not limited thereto. For example, only one of theworkstation 110 and the X-ray apparatus 100 may include an output unitor an input unit.

Hereinafter, the input units 112 and 142 may denote the input unit 112of the workstation 110 and/or the input unit 142 of the X-ray apparatus100, and the output units 111 and 141 may denote the output unit 111 ofthe workstation 110 and/or the output unit 141 of the X-ray apparatus100.

Examples of the input units 112 and 142 may include a keyboard, a mouse,a touch screen, a voice recognizer, a fingerprint recognizer, an irisrecognizer, and other input devices which are well known to one ofordinary skill in the art and will not be described in further detail.The user may input a command for radiating the X-ray via the input units112 and 142, and the input units 112 and 142 may include a switch forinputting the command. The switch may be configured so that a radiationcommand for radiating the X-ray may be input only when the switch ispushed twice.

In other words, when the user pushes the switch, a prepare command forperforming a pre-heating operation for X-ray radiation may be inputthrough the switch, and then, when the user pushes the switch once more,the radiation command for performing substantial X-ray radiation may beinput through the switch. When the user manipulates the switch asdescribed above, the controllers 113 and 150 generate signalscorresponding to the commands input through the switch manipulation,that is, a prepare signal, and transmit the generated signals to thehigh voltage generator 121 generating a high voltage for generating theX-ray.

When the high voltage generator 121 receives the prepare signal from thecontrollers 113 and 150, the high voltage generator 121 starts apre-heating operation, and when the pre-heating is finished, the highvoltage generator 121 outputs a ready signal to the controllers 113 and150. In addition, as the detector 130 also needs to prepare to detectthe X-ray, when the high voltage generator 121 performs the pre-heatingoperation, and controllers 113 and 150 transmit a prepare signal to thedetector 130 so that the detector 130 may prepare to detect the X-raytransmitted through the object. The detector 130 prepares to detect theX-ray in response to the prepare signal, and when the preparing for thedetection is finished, the detector 130 transmits a ready signal to thecontrollers 113 and 150. The preparing for the detection by the detector130 may be referred to as “activation” or the like.

When the pre-heating operation of the high voltage generator 121 isfinished and the detector 130 is ready to detect the X-ray, thecontrollers 113 and 150 transmit a radiation signal to the high voltagegenerator 121, the high voltage generator 121 generates and applies thehigh voltage to the X-ray source 122, and the X-ray source 122 radiatesthe X-ray.

When the controllers 113 and 150 transmit the radiation signal to thehigh voltage generator 121, the controllers 113 and 150 may transmit asound output signal to the output units 111 and 141 so that the outputunits 111 and 141 output a predetermined sound so that the user and/orthe object (for example, a patent being X-rayed) may recognize theradiation of the X-ray. The output units 111 and 141 may also output asound representing information related to photographing in addition tothe X-ray radiation. In FIG. 1, the output unit 141 is included in themanipulation unit 140; however, the exemplary embodiments are notlimited thereto, and the output unit 141 or a portion of the output unit141 may be located elsewhere. For example, the output unit 141 may belocated on a wall of an examination room in which the X-rayphotographing of the object is performed.

The controllers 113 and 150 control locations of the X-ray radiationunit 120 and the detector 130, photographing timing, and photographingconditions, according to photographing conditions set by the user.

In more detail, the controllers 113 and 150 control the high voltagegenerator 121 and the detector 130 according to the command input viathe input units 112 and 142 so as to control radiation timing of theX-ray, an intensity of the X-ray, and a region irradiated by the X-ray.In addition, the controllers 113 and 150 adjust the location of thedetector 130 according to a predetermined photographing condition, andcontrols operation timing of the detector 130.

Furthermore, the controllers 113 and 150 generate a medical image of theobject by using image data received via the detector 130. In detail, thecontrollers 113 and 150 may receive the image data from the detector130, and then, generate the medical image of the object by removingnoise from the image data and adjusting a dynamic range and interleavingof the image data.

The output units 111 and 141 may output the medical image generated bythe controllers 113 and 150. The output units 111 and 141 may outputinformation that is necessary for the user to manipulate the X-rayapparatus 100, for example, a user interface (UI), user information, orobject information. Examples of the output units 111 and 141 may includea speaker, a printer, a cathode ray tube (CRT) display, a liquid crystaldisplay (LCD), a plasma display panel (PDP), an organic light emittingdiode (OLED) display, a field emission display (FED), a light emittingdiode (LED) display, a vacuum fluorescent display (VFD), a digital lightprocessing (DLP) display, a flat panel display (FPD), athree-dimensional (3D) display, a transparent display, and other variousoutput devices well known to one of ordinary skill in the art.

The workstation 110 shown in FIG. 1 may further include a communicationunit (not shown) that may be connected to a server 162, a medicalapparatus 164, and a portable terminal 166 via a network 160.

The communication unit may be connected to the network 160 by wire orwirelessly to communicate with the external server 162, the externalmedical apparatus 164, or the external portable terminal 166. Thecommunication unit may transmit or receive data related to diagnosis ofthe object via the network 160, and may also transmit or receive medicalimages captured by the medical apparatus 164, for example, a CTapparatus, an MRI apparatus, or an X-ray apparatus. Moreover, thecommunication unit may receive a medical history or treatment scheduleof an object (e.g., a patient) from the server 162 to diagnose a diseaseof the object. Furthermore, the communication unit may perform datacommunication with the portable terminal 166 such as a mobile phone, apersonal digital assistant (PDA), or a laptop computer of a medicaldoctor or a client, as well as the server 162 or the medical apparatus164 in a hospital.

The communication unit may include one or more elements enablingcommunication with external apparatuses. For example, the communicationunit may include a short distance communication module, a wiredcommunication module, and a wireless communication module.

The short distance communication module refers to a module forperforming short distance communication with an apparatus located withina predetermined distance. Examples of short distance communicationtechnology may include, but are not limited to, a wireless local areanetwork (LAN), Wi-Fi, Bluetooth, ZigBee, Wi-Fi Direct (WFD), ultrawideband (UWD), infrared data association (IrDA), Bluetooth low energy(BLE), and near field communication (NFC).

The wired communication module refers to a module for communicating byusing an electric signal or an optical signal. Examples of wiredcommunication technology may include wired communication techniquesusing a pair cable, a coaxial cable, and an optical fiber cable, andother wired communication techniques that are well known to one ofordinary skill in the art.

The wireless communication module transmits and receives a wirelesssignal to and from at least one selected from a base station, anexternal apparatus, and a server in a mobile communication network.Here, examples of the wireless signal may include a voice call signal, avideo call signal, and various types of data according totext/multimedia messages transmission.

The X-ray apparatus 100 shown in FIG. 1 may include a plurality ofdigital signal processors (DSPs), an ultra-small calculator, and aprocessing circuit for special purposes (for example, high speedanalog/digital (A/D) conversion, high speed Fourier transformation, andan array process).

In addition, communication between the workstation 110 and the X-rayapparatus 100 may be performed using a high speed digital interface,such as low voltage differential signaling (LVDS), asynchronous serialcommunication, such as a universal asynchronous receiver transmitter(UART), a low latency network protocol, such as error synchronous serialcommunication or a controller area network (CAN), or any of othervarious communication methods that are well known to one of ordinaryskill in the art.

FIG. 2 is a perspective view of a fixed type X-ray apparatus 200. Thefixed type X-ray apparatus 200 may be another embodiment of the X-rayapparatus 100 of FIG. 1. Components included in the fixed type X-rayapparatus 200 that are the same as those of the X-ray apparatus 100 ofFIG. 1 use the same reference numerals, and repeated descriptionsthereof will be omitted.

Referring to FIG. 2, the fixed type X-ray apparatus 200 includes amanipulation unit 140 providing a user with an interface formanipulating the X-ray apparatus 200, an X-ray radiation unit 120radiating an X-ray to an object, a detector 130 detecting an X-ray thathas passed through the object, first, second, and third motors 211, 212,and 213 providing a driving power to transport the X-ray radiation unit120, a guide rail 220, a moving carriage 230, and a post frame 240. Theguide rail 220, the moving carriage 230, and the post frame 240 areformed to transport the X-ray radiation unit 120 by using the drivingpower of the first, second, and third motors 211, 212, and 213.

The guide rail 220 includes a first guide rail 221 and a second guiderail 222 that are provided to form a predetermined angle with respect toeach other. The first guide rail 221 and the second guide rail 222 mayrespectively extend in directions crossing each other at 90° (that is,perpendicular).

The first guide rail 221 may be provided on the ceiling of anexamination room in which the X-ray apparatus 200 is disposed.

The second guide rail 222 is located under the first guide rail 221, andis mounted so as to slide along the first guide rail 221. A roller (notshown) that may move along the first guide rail 221 may be provided onthe first guide rail 221. The second guide rail 222 is connected to theroller to move along the first guide rail 221.

A first direction D1 is defined as a direction in which the first guiderail 221 extends, and a second direction D2 is defined as a direction inwhich the second guide rail 222 extends. Therefore, the first directionD1 and the second direction D2 cross each other at 90°, and may beparallel to the ceiling of the examination room.

The moving carriage 230 is disposed under the second guide rail 222 soas to move along the second guide rail 222. A roller (not shown) movingalong the second guide rail 222 may be provided on the moving carriage230.

Therefore, the moving carriage 230 may move in the first direction D1together with the second guide rail 222, and may move in the seconddirection D2 along the second guide rail 222.

The post frame 240 is fixed on the moving carriage 230 and located underthe moving carriage 230. The post frame 240 may include a plurality ofposts 241, 242, 243, 244, and 245.

The plurality of posts 241, 242, 243, 244, and 245 are connected to eachother to be foldable, and thus, the post frame 240 may have a lengththat is adjustable in a vertical direction of the examination room whilein a state of being fixed to the moving carriage 230.

A third direction D3 is defined as a direction in which the length ofthe post frame 240 increases or decreases. Therefore, the thirddirection D3 may be perpendicular to the first direction D1 and thesecond direction D2.

The detector 130 detects the X-ray that has passed through the object,and may be combined with a table type receptor 290 or a stand typereceptor 280.

A rotating joint 250 is disposed between the X-ray radiation unit 120and the post frame 240. The rotating joint 250 allows the X-rayradiation unit 120 to be coupled to the post frame 240, and supports aload applied to the X-ray radiation unit 120.

The X-ray radiation unit 120 connected to the rotating joint 250 mayrotate on a plane that is perpendicular to the third direction D3. Inthis case, a rotating direction of the X-ray radiation unit 120 may bedefined as a fourth direction D4.

The X-ray radiation unit 120 may be configured to be rotatable on aplane perpendicular to the ceiling of the examination room. Therefore,the X-ray radiation unit 120 may rotate in a fifth direction D5 that isa rotating direction about an axis that is parallel with the firstdirection D1 or the second direction D2, with respect to the rotatingjoint 250.

The first, second, and third motors 211, 212, and 213 may be provided tomove the X-ray radiation unit 120 in the first, second, and thirddirections D1, D2, and D3. The first, second, and third motors 211, 212,and 213 may be electrically driven, and the first, second, and thirdmotors 211, 212, and 213 may respectively include an encoder.

The first, second, and third motors 211, 212, and 213 may be disposed atvarious locations in consideration of design convenience. For example,the first motor 211, moving the second guide rail 222 in the firstdirection D1, may be disposed around the first guide rail 221, thesecond motor 212, moving the moving carriage 230 in the second directionD2, may be disposed around the second guide rail 222, and the thirdmotor 213, increasing or reducing the length of the post frame 240 inthe third direction D3, may be disposed in the moving carriage 230. Inanother example, the first, second, and third motors 211, 212, and 213may be connected to a power transfer unit (not shown) so as to linearlymove the X-ray radiation unit 120 in the first, second, and thirddirections D1, D2, and D3. The driving power transfer unit may be acombination of a belt and a pulley, a combination of a chain and asprocket, a shaft, etc. which are generally used and will not bedescribed in detail.

In another example, motors (not shown) may be disposed between therotating joint 250 and the post frame 240 and between the rotating joint250 and the X-ray radiation unit 120 in order to rotate the X-rayradiation unit 120 in the fourth and fifth directions D4 and D5.

The manipulation unit 140 may be disposed on a side surface of the X-rayradiation unit 120.

Although FIG. 2 shows the fixed type X-ray apparatus 200 connected tothe ceiling of the examination room, the fixed type X-ray apparatus 200is merely an example for convenience of comprehension. That is, X-rayapparatuses according to exemplary embodiments may include X-rayapparatuses having various structures that are well known to one ofordinary skill in the art, for example, a C-arm-type X-ray apparatus andan angiography X-ray apparatus, in addition to the fixed type X-rayapparatus 200 of FIG. 2.

FIG. 3 is a diagram showing a configuration of a mobile X-ray apparatus300 capable of performing an X-ray photographing operation regardless ofa place where the photographing operation is performed. The mobile X-rayapparatus 300 may be another embodiment of the X-ray apparatus 100 ofFIG. 1. Components included in the mobile X-ray apparatus 300 that arethe same as those of the X-ray apparatus 100 of FIG. 1 use the samereference numerals as those used in FIG. 1, and a repeated descriptionthereof will be omitted.

Referring to FIG. 3, the mobile X-ray apparatus 300 includes a transportunit 370 including wheels for transporting the mobile X-ray apparatus300, a main unit 305, an X-ray radiation unit 120, and a detector 130detecting an X-ray that is radiated from the X-ray radiation unit 120toward an object and transmitted through the object. The main unit 305includes a manipulation unit 140 providing a user with an interface formanipulating the mobile X-ray apparatus 300, a high voltage generator121 generating a high voltage applied to an X-ray source 122, and acontroller 150 controlling overall operations of the mobile X-rayapparatus 300. The X-ray radiation unit 120 includes the X-ray source122 generating the X-ray, and a collimator 123 guiding a path alongwhich the generated X-ray is emitted from the X-ray source 355 andadjusting an irradiation region radiated by the X-ray.

Although the detector 130 is combined with a table type receptor 390 inFIG. 3, the detector 130 may also be combined with a stand typereceptor.

In FIG. 3, the manipulation unit 140 is included in the main unit 305;however, exemplary embodiments are not limited thereto. For example, themanipulation unit 140 of the mobile X-ray apparatus 300 may be disposedon a side surface of the X-ray radiation unit 120.

FIG. 4 is a schematic diagram showing a detailed configuration of adetector 400. The detector 400 may be an embodiment of the detector 130of FIGS. 1-3. The detector 400 may be an indirect type detector.

Referring to FIG. 4, the detector 400 may include a scintillator (notshown), a photodetecting substrate 410, a bias driving unit 430, a gatedriving unit 450, and a signal processing unit 470.

The scintillator receives the X-ray radiated from the X-ray source 122and converts the X-ray into light.

The photodetecting substrate 410 receives the light from thescintillator and converts the light into an electrical signal. Thephotodetecting substrate 410 may include gate lines GL, data lines DL,TFTs 412, photodiodes 414, and bias lines BL.

The gate lines GL may be formed in a first direction DR1, and the datalines DL may be formed in a second direction DR2 that crosses the firstdirection DR1. The first direction DR1 and the second direction DR2 mayintersect perpendicularly to each other. FIG. 4 shows four gate lines GLand four data lines DL as an example.

The TFTs 412 may be arranged as a matrix in the first and seconddirections DR1 and DR2. Each of the TFTs 412 may be electricallyconnected to one of the gate lines GL and one of the data lines DL. Agate of the TFT 412 may be electrically connected to the gate line GL,and a source of the TFT 412 may be electrically connected to the dataline DL. In FIG. 4, sixteen TFTs 412 (in a 4×4 arrangement) are shown asan example.

The photodiodes 414 may be arranged as a matrix in the first and seconddirections DR1 and DR2 so as to respectively correspond to the TFTs 412.Each of the photodiodes 414 may be electrically connected to one of theTFTs 412. An N-side electrode of each of the photodiodes 414 may beelectrically connected to a drain of the TFT 412. FIG. 4 shows sixteenphotodiodes 414 (in a 4×4 arrangement) as an example.

The bias lines BL are electrically connected to the photodiodes 414.Each of the bias lines BL may be electrically connected to P-sideelectrodes of an array of photodiodes 414. For example, the bias linesBL may be formed to be substantially parallel with the second directionDR2 so as to be electrically connected to the photodiodes 414. On theother hand, the bias lines BL may be formed to be substantially parallelwith the first direction DR1 so as to be electrically connected to thephotodiodes 414. FIG. 4 shows four bias lines BL formed along the seconddirection DR2 as an example.

The bias driving unit 430 is electrically connected to the bias lines BLso as to apply a driving voltage to the bias lines BL. The bias drivingunit 430 may selectively apply a reverse bias voltage or a forward biasvoltage to the photodiodes 414. A reference voltage may be applied tothe N-side electrodes of the photodiodes 414. The reference voltage maybe applied via the signal processing unit 470. The bias driving unit 430may apply a voltage that is less than the reference voltage to theP-side electrodes of the photodiodes 414 so as to apply a reverse biasvoltage to the photodiodes 414. On the other hand, the bias driving unit430 may apply a voltage that is greater than the reference voltage tothe P-side electrodes of the photodiodes 414 so as to apply a forwardbias voltage to the photodiodes 414.

The gate driving unit 450 is electrically connected to the gate lines GLand thus may apply gate signals to the gate lines GL. For example, whenthe gate signals are applied to the gate lines GL, the TFTs 412 may beturned on by the gate signals. On the other hand, when the gate signalsare not applied to the gate lines GL, the TFTs 412 may be turned off.

The signal processing unit 470 is electrically connected to the datalines DL. When the light received by the photodetecting substrate 410 isconverted into the electrical signal, the electrical signal may be readout by the signal processing unit 470 via the data lines DL.

An operation of the detector 400 will now be described. During theoperation of the detector 400, the bias driving unit 430 may apply thereverse bias voltage to the photodiodes 414.

While the TFTs 412 are turned off, each of the photodiodes 414 mayreceive the light from the scintillator and generate electron-hole pairsto accumulate electric charges. The amount of electric chargeaccumulated in each of the photodiodes 414 may correspond to theintensity of the received X-ray light.

Then, the gate driving unit 450 may sequentially apply the gate signalsto the gate lines GL along the second direction DR2. When a gate signalis applied to a gate line GL and thus TFTs 412 connected to the gateline GL are turned on, photocurrents may flow into the signal processingunit 470 via the data lines DL due to the electric charges accumulatedin the photodiodes 414 connected to the turned-on TFTs 412.

The signal processing unit 470 may convert the received photocurrentsinto image data and output the image data to the outside. The image datamay be in the form of an analog signal or a digital signal correspondingto the photocurrents.

Although not shown in FIG. 4, if the detector 400 shown in FIG. 4 is awireless detector, the detector 400 may further include a battery unitand a wireless communication interface unit.

As described above, the detection unit 130 may be an X-ray detectorwhich is a separate device capable of being connected to or separatedfrom the X-ray apparatus 100. In detail, the X-ray detector may bephysically connected to or separated from the X-ray apparatus 100 andmay communicate with the X-ray apparatus 100 via a wired or wirelessnetwork.

A wired X-ray detector is coupled to the stand type receptor 280 or thetable type receptor 290 and thus is not freely movable. On the otherhand, a wireless X-ray detector may be coupled to a receptor or may notbe coupled to a receptor.

In detail, a wireless X-ray detector may communicate with the X-rayapparatus 100 or the X-ray system 1000 via a wireless network.Accordingly, a user may use a wireless X-ray detector in variouslocations according to parts of an object to be photographed, withoutbeing coupled to a receptor.

Since the wireless X-ray detector is not dependent upon specificationinformation about the receptor, wireless X-ray detectors having varioussizes and shapes may be used in an identical X-ray apparatus or anidentical X-ray system. The sizes and shapes of X-ray detectors suitablefor X-ray imaging may differ according to parts of an object to bephotographed.

Thus, a plurality of X-ray detectors of an identical type or ofdifferent types may exist in a single X-ray imaging room, and a userneeds to select an X-ray detector suitable for a part of an object to bephotographed and an imaging environment from among the plurality ofX-ray detectors. However, when a plurality of X-ray detectors of anidentical type or of different types exist in a single X-ray imagingroom, it may be confusing to distinguish the plurality of X-raydetectors from one another or select an X-ray detector that is to beused in X-ray imaging from among the plurality of X-ray detectors.

Therefore, an X-ray detector according to one or more exemplaryembodiments may display an assign indicator set by a workstation.Accordingly, a user may efficiently distinguish a plurality of X-raydetectors from one another and may efficiently select an X-ray detectorthat is to be used in X-ray imaging from among the X-ray detectors, byreferring to the respective assign indicators of the X-ray detectors.

A workstation capable of setting assign indicator information of anX-ray detector and an X-ray detector capable of displaying an assignindicator, according to one or more exemplary embodiments, will now bedescribed in detail.

FIG. 5 is a block diagram for describing respective operations of aworkstation 500 and an X-ray detector 510 according to an exemplaryembodiment. The X-ray detector 510 includes an output unit 511 a fordisplaying an assign indicator.

In operation S520, the X-ray detector 510 transmits identificationinformation 570 of the X-ray detector 510 to the workstation 500.Throughout the specification, the identification information 570 of theX-ray detector 510 refers to predetermined information about the X-raydetector 510 that distinguishes the X-ray detector 510 from other X-raydetectors.

For example, the identification information 570 may include uniqueinformation 571 of the X-ray detector 510 that distinguishes the X-raydetector 510 from not only other types of X-ray detectors but also thesame type of X-ray detectors as that of the X-ray detector 510. Forexample, the unique information 571 may include at least one selectedfrom a serial number (SN) of the X-ray detector 510 and InternetProtocol (IP) address information thereof. In detail, the SN of theX-ray detector 510 is a unique identifier assigned during themanufacture of the X-ray detector 510. The IP address information of theX-ray detector 510 may include an IP address value that is to be usedwhen the X-ray detector 510 and an access point (AP) communicate witheach other.

The identification information 570 may also include specificationinformation 572 of the X-ray detector 510 that distinguishes the X-raydetector 510 from other types of X-ray detectors. For example, thespecification information 572 may include at least one selected from thesize of the X-ray detector 510 and the type of a receptor with which theX-ray detector 510 is combinable. As described above, different sizesand shapes of X-ray detectors may be suitable for X-ray imagingaccording to parts of an object to be photographed. Accordingly, thesize of the X-ray detector 510 may be a criterion on which a userselects an X-ray detector 510 suitable for imaging. In addition, when auser wants to combine the X-ray detector 510 to a predeterminedreceptor, the type of a receptor with which the X-ray detector 510 iscombinable may be a criterion on which a user selects an X-ray detector510 suitable for imaging.

For example, when a 17×17 inch X-ray detector 510 may be combined withthe stand type receptor 280 of FIG. 2 by a user but a 14×14 inch X-raydetector 510 may be combined with the table type receptor 290 of FIG. 2,the specification information 572 of the X-ray detector 510 may be acriterion on which a user selects an X-ray detector suitable forimaging.

The specification information 572 of the X-ray detector 510 is notlimited to the size of the X-ray detector 510 and the type of a receptorwith which the X-ray detector 510 is combinable. For example, thespecification information 572 of the X-ray detector 510 may furtherinclude information about a detection material of the X-ray detector510, information about a geometrical structure of the X-ray detector510, and information about a method in which the X-ray detector 510measures a signal. In detail, the information about the detectionmaterial of the X-ray detector 510 includes a light detection type and adirect charge-detection type. The information about the geometricalstructure of the X-ray detector 510 includes a one-dimensional (1D)array type and a two-dimensional (2D) area type. The information aboutthe method in which the X-ray detector 510 measures a signal may includean integral detection type and a coefficient detection type.

In addition to the unique information 571 and the specificationinformation 572, the identification information 570 of the X-raydetector 510 may further include position information 573 of the X-raydetector 510 and identification information 574 of a network to whichthe X-ray detector 510 has been connected. The position information 573of the X-ray detector 510 and the identification information 574 of thenetwork will be described in further detail later with reference toFIGS. 8, 9, 12, and 13.

In operation S530, the workstation 500 sets assign indicator informationof the X-ray detector 510, based on the identification information 570of the X-ray detector 510. Throughout the specification, an assignindicator refers to a visual indicator that is displayed by the outputunit 511 a of the X-ray detector 510, and may be a visual notificationsignal capable of helping a user to select an X-ray detector 510 whichis to be used for imaging. Throughout the specification, assignindicator information refers to information used to control an assignindicator that the X-ray detector 510 displays. The workstation 500 setsthe assign indicator information and transmits the assign indicatorinformation to the X-ray detector 510. In detail, the assign indicatormay include at least one selected from a character, a number, a symbol,a color, and an image. The assign indicator information may includeinformation that indicates at least one selected from a character, anumber, a symbol, a color, and an image.

In operation S540, the workstation 500 transmits the set assignindicator information to the X-ray detector 510.

In operation S550, the X-ray detector 510 displays an assign indicatorbased on the received assign indicator information. For example, whenthe workstation 500 sets, based on the specification information 572 ofthe X-ray detector 510, information indicating a yellow color as assignindicator information for a 17×17 inch X-ray detector 510 and setsinformation indicating a blue color as assign indicator information fora 14×14 inch X-ray detector 510, an output unit 511 b of a 17×17 inchX-ray detector 510 may display an assign indicator corresponding to ayellow color.

A user may efficiently distinguish 14×14 inch X-ray detectors 510 from17×17 inch X-ray detectors 510 by referring to assign indicators of ayellow or blue color displayed on the X-ray detectors 510. For example,when a 17×17 inch X-ray detector 510 is combinable with the stand typereceptor 280, a user may easily select an X-ray detector 510 thatdisplays the assign indicator of a yellow color and may combine theselected X-ray detector 510 with the stand type receptor 280.

FIG. 6 is a block diagram of a workstation 600 according to an exemplaryembodiment. The workstation 600 includes a receiver 610, a controller620, an output unit 630, and a transmitter 650, and may further includean input unit 640.

When the workstation 600 of FIG. 6 is included in the X-ray system 1000of FIG. 1, the workstation 600 of FIG. 6 may correspond to theworkstation 110 of FIG. 1. In detail, the controller 620, the outputunit 630, and the input unit 640 of the workstation 600 of FIG. 6 mayrespectively correspond to the controller 113, the output unit 111, andthe input unit 112 of the workstation 110 of FIG. 1. The receiver 610and the transmitter 650 of the workstation 600 of FIG. 6 may communicatewith the X-ray apparatus 100 by wires or wirelessly and may alsocommunicate with an external apparatus via the network 160 of FIG. 1.Thus, a repeated description thereof will be omitted.

The receiver 610 of the workstation 600 may receive identificationinformation 570 of an X-ray detector 510 from the X-ray detector 510.For example, when the workstation 600 of FIG. 6 is included in the X-raysystem 1000 of FIG. 1, the receiver 610 may directly receiveidentification information 570 of an X-ray detector 510 corresponding tothe detector 130 of FIG. 1 via communication with the X-ray detector510. When an X-ray detector 510 is coupled to a receptor, the receiver610 may indirectly receive identification information 570 of the X-raydetector 510 via communication with the receptor.

The controller 620 of the workstation 600 may set assign indicatorinformation of the X-ray detector 510, based on the receivedidentification information 570 of the X-ray detector 510.

As described above, the identification information 570 of the X-raydetector 510 may include at least one selected from unique information571, specification information 572, position information 573, andidentification information 574 of a network to which the X-ray detector510 has been connected.

When the controller 620 sets the assign indicator information based onthe unique information 571 included in the identification information570 of the X-ray detector 510, an assign indicator displayed on an X-raydetector 510 may be distinguished from assign indicators displayed onall of other X-ray detectors 570.

When the controller 620 sets the assign indicator information based onthe specification information 572 included in the identificationinformation 570 of the X-ray detector, X-ray detectors 510 havingidentical specification information 572 may display identical assignindicators.

When the controller 620 sets the assign indicator information based onthe position information 573 included in the identification information570 of the X-ray detector, X-ray detectors 510 located at the samepositions may display identical assign indicators. The positioninformation 573 of an X-ray detector 510 may include at least oneselected from information indicating that the X-ray detector 510 hasbeen coupled to a stand type receptor (hereinafter, referred to as standposition information), information indicating that the X-ray detector510 has been coupled to a table receptor (hereinafter, referred to astable position information), and information indicating that the X-raydetector 510 has not been coupled to any receptors (hereinafter,referred to as portable position information). However, the positioninformation 573 of the X-ray detector 510 is not limited thereto, andthe position information 573 of the X-ray detector 510 may includeadditional position information 573 obtained via a sensor in an X-rayimaging room or a sensor included in an X-ray system 1000. The assignindicator information set according to the position information 573 ofthe X-ray detector 510 will be described in further detail later withreference to FIGS. 8 and 9.

When the controller 620 sets the assign indicator information based onthe identification information 574 of the network to which the X-raydetector 510 has been connected, which is included in the identificationinformation 570 of the X-ray detector 510, X-ray detectors 510 connectedto an identical network may display identical assign indicators. Indetail, when each room of a plurality of X-ray imaging rooms use adifferent network, X-ray detectors 510 existing in an identical X-rayimaging room may display identical assign indicators, whereas X-raydetectors 510 existing in different X-ray imaging rooms may displaydifferent assign indicators. The assign indicator information setaccording to the identification information 574 of the network to whichthe X-ray detector 510 has been connected will be described in furtherdetail later with reference to FIGS. 12 and 13.

The output unit 630 of the workstation 600 may display the assignindicator information of the X-ray detector 510 that has been set by thecontroller 620. In detail, the output unit 630 may display an X-raydetector icon representing the assign indicator information of the X-raydetector 510.

Accordingly, a user may efficiently distinguish the plurality of X-raydetectors 510 from one another and efficiently select an X-ray detector510 that is to be used in imaging, by referring to not only an assignindicator displayed on an output unit 511 a of the X-ray detector 510but also the assign indicator information of the X-ray detector 510displayed on the output unit 630 of the workstation 600.

The workstation 600 may further include the input unit 640 to receive auser input. The assign indicator information of the X-ray detector 510may be arbitrarily set by the controller 620, and the set assignindicator information may be changed by a user. In detail, the inputunit 640 may receive an input of re-setting the assign indicatorinformation of the X-ray detector 510 set by the controller 620, and thecontroller 620 may re-set the assign indicator information of the X-raydetector 510 in response to the input.

Similarly, the controller 620 may select one of a plurality ofidentification information 570 of the X-ray detector 510 received by thereceiver 610, as a criterion for setting the assign indicatorinformation of the X-ray detector 510 (hereinafter, referred to as anassign indicator information setting criterion).

The assign indicator information setting criterion may be changed by auser. In detail, the input unit 640 may receive an input of changing theassign indicator information setting criterion selected by thecontroller 620, and the controller 620 may change the assign indicatorinformation setting criterion in response to the input.

The input unit 640 may be a touch pad. In detail, the input unit 640 mayinclude a touch pad (not shown) coupled with a display panel (not shown)included in the output unit 630. The output unit 630 displays a userinterface (UI) image on the display panel. When a user inputs a commandby touching a certain point on the UI image, the touch pad may sense theinput operation and recognize the command input by the user.

In detail, when the input unit 640 is a touch pad and the user touches acertain point on the UI image, the input unit 640 senses the touchedpoint. Then, the input unit 640 may transmit sensed information to thecontroller 620. Thereafter, the controller 620 may recognize a user'srequest or command corresponding to the sensed information and mayperform the recognized user's request or command.

The transmitter 650 of the workstation 600 may transmit assign indicatorinformation of the X-ray detector 510 to the X-ray detector 510. Forexample, when the workstation 600 of FIG. 6 is included in the X-raysystem 1000 of FIG. 1, the transmitter 650 may directly transmit theassign indicator information of the X-ray detector 510 corresponding tothe detector 130 of FIG. 1 via communication with the X-ray detector510. When the X-ray detector 510 is combined with a receptor, thetransmitter 650 may indirectly transmit the assign indicator informationof the X-ray detector via 510 communication with the receptor.

The receiver 610 and the transmitter 650 of the workstation 600 of FIG.6 may communicate with an external apparatus including the X-raydetector 510 via a wired or wireless network 160.

The workstation 600 may be implemented in the manipulation unit 140 ofthe X-ray apparatus 100 of FIG. 1.

In detail, in the X-ray apparatus 100 including the X-ray radiation unit120 for radiating an X-ray onto an object and the manipulation unit 140for manipulating the X-ray radiation unit 120, the manipulation unit 140may include a receiver (corresponding to the receiver 610) for receivingthe identification information 570 of the X-ray detector 510, acontroller (corresponding to the controller 620) for setting the assignindicator information of the X-ray detector 510 based on the receivedidentification information 570 of the X-ray detector 510, an output unit(corresponding to the output unit 630) for displaying the assignindicator information of the X-ray detector 510, and a transmitter(corresponding to the transmitter 650) for transmitting the assignindicator information of the X-ray detector 510 to the X-ray detector510.

When the workstation 600 is implemented in the manipulation unit 140 ofthe X-ray apparatus 100 of FIG. 1, the X-ray detector 510 may display anassign indicator via communication with the manipulation unit 140 of theX-ray apparatus 100, without the workstation 110 provided outside theX-ray apparatus 100.

FIG. 7 is a block diagram of an X-ray detector 700 according to anexemplary embodiment.

The X-ray detector 700 may include a receiver 710, an output unit 730,and a transmitter 740. The X-ray detector 700 may further include acontroller 720. When the X-ray detector 700 is included in the X-rayapparatus 100 of FIG. 1, the X-ray detector 700 may correspond to thedetector 130 of FIG. 1. As described above, the X-ray detector 700 maybe connected to or disconnected from the X-ray apparatus 100 of FIG. 1.Thus, a repeated description thereof will be omitted.

The transmitter 740 of the X-ray detector 700 may transmit theidentification information of the X-ray detector 700 to a workstation.When the X-ray detector 700 is included in the X-ray system 1000 of FIG.1, the transmitter 740 of the X-ray detector 700 may directly transmitthe identification information of the X-ray detector 700 to theworkstation 110 of FIG. 1. When the X-ray detector 700 is combined witha receptor of the X-ray apparatus 100, the transmitter 740 mayindirectly transmit the identification information of the X-ray detector700 to the workstation 110 via communication with the receptor.

After the transmitter 740 transmits the identification information, thereceiver 710 of the X-ray detector 700 may receive the assign indicatorinformation from the workstation 600. As described above, the assignindicator information may include information that indicates at leastone selected from a character, a number, a symbol, a color, and animage.

When the X-ray detector 700 is included in the X-ray system 1000 of FIG.1, the receiver 710 of the X-ray detector 700 may directly receive theassign indicator information from the workstation 110 of FIG. 1. Whenthe X-ray detector 700 is combined with a receptor of the X-rayapparatus 100, the receiver 710 may indirectly receive assign indicatorinformation from the workstation 110 via communication with thereceptor.

The X-ray detector 700 may be a wired X-ray detector or a wireless X-raydetector. When the X-ray detector 700 is a wireless X-ray detector, thereceiver 710 and the transmitter 740 may communicate with an externalapparatus via a wireless network.

The output unit 730 of the X-ray detector 700 may display an assignindicator based on the assign indicator information received by thereceiver 710 of the X-ray detector 700. For example, the output unit 730of the X-ray detector 700 may include a liquid crystal display (LCD), alight-emitting diode (LED), or a light-emitting device to display theassign indicator.

The output unit 730 may include an optical waveguide positioned on atleast one edge of the X-ray detector 700. The X-ray detector 700 maymore efficiently display the assign indicator thereof via the opticalwaveguide. The optical waveguide will be described in further detaillater with reference to FIGS. 19 and 20.

The controller 720 of the X-ray detector 700 may acquire stateinformation of the X-ray detector 700. For example, the stateinformation of the X-ray detector 700 may include at least one selectedfrom residual battery capacity information of the X-ray detector 700,communication sensitivity information of the X-ray detector 700, andinformation about whether the X-ray detector 700 has been activated. Thestate information of the X-ray detector 700 will be described in furtherdetail later with reference to FIGS. 14-18.

FIG. 8 illustrates an operation in which the workstation 600 of FIG. 6sets the assign indicator information of an X-ray detector based on theposition information of the X-ray detector. In detail, FIG. 8illustrates UI images 800 and 850 displayed on the output unit 630 ofthe workstation 600.

Referring to FIGS. 6 and 8, the receiver 610 of the workstation 600 mayreceive the identification information of the X-ray detector thatincludes at least one selected from the unique information of the X-raydetector and the specification information of the X-ray detector andfurther includes the position information of the X-ray detector.

The controller 620 of the workstation 600 may authenticate the X-raydetector based on at least one selected from the unique information andthe specification information of the X-ray detector which have beenreceived by the receiver 610. For example, the workstation 600 mayauthenticate the X-ray detector based on a detector SN 802 of the X-raydetector.

Throughout the specification, authentication for an X-ray detector by aworkstation means that a workstation previously registers an X-raydetector which is to be used in X-ray imaging. In addition, theworkstation may allow an authenticated X-ray detector to communicate, oractivate (or prepare for detection) the authenticated X-ray detector.

The output unit 630 of the workstation 600 may display a list 810 ofX-ray detectors 811, 812, and 813 that have been authenticated by theworkstation 600, via a UI image 800. The output unit 630 may simplydisplay the identification information of the X-ray detector, such asthe detector SN 802 and position information 801 of the X-ray detector,on the list 810 of the authenticated X-ray detectors.

The output unit 630 of the workstation 600 may also display moredetailed identification information 820 of the X-ray detector 811selected from among the list 810. The identification information 820 ofthe selected X-ray detector 811 may further include an IP address of theselected X-ray detector 811 and the type of a receptor with which theX-ray detector 811 is combinable, which are not shown on the list 810.

The controller 620 of the workstation 600 may set the assign indicatorinformation of the authenticated X-ray detector based on the positioninformation 801 of the X-ray detector. In other words, the controller620 may set the position information 801 of the X-ray detector to be anassign indicator information setting criterion 860.

When the input unit 640 of the workstation 600 receives an input 840 ofselecting an icon 830, the controller 620 may set respective assignindicator information of the X-ray detectors 811, 812, and 813.Alternatively, the controller 620 may set the respective assignindicator information of the X-ray detectors 811, 812, and 813immediately without waiting until the input 840 for selecting an icon830 is received.

In detail, the controller 620 may classify table position information861, stand position information 862, and portable position information863 of authenticated X-ray detectors and set identical assign indicatorinformation for X-ray detectors having identical position informationand different assign indicator information for X-ray detectors havingdifferent position information.

For example, the controller 620 may set assign indicator information 871of a yellow color for an X-ray detector corresponding to the tableposition information 861, assign indicator information 872 of a violetcolor for an X-ray detector corresponding to the stand positioninformation 862, and assign indicator information 873 of a blue colorfor an X-ray detector corresponding to the portable position information863.

The position information of an X-ray detector may change as the positionof the X-ray detector changes. For example, when an X-ray detector is awireless X-ray detector, the X-ray detector may be combined with thestand type receptor 280 of FIG. 2 at a first point in time and may beseparated from the stand type receptor 280 at a second point in time.Accordingly, the position information of the X-ray detector received bythe receiver 610 of the workstation 600 at the first point in time maybe stand position information, and the position information of the X-raydetector received by the receiver 610 of the workstation 600 at thesecond point in time may be portable position information.

Thus, the controller 620 needs to specify a point in time in order toset the assign indicator information of the X-ray detector based on theposition information 801 of the X-ray detector. For example, thecontroller 620 of the workstation 600 may set the assign indicatorinformation of the X-ray detector, based on position information of theX-ray detector at the point in time when the X-ray detector isauthenticated.

In detail, the controller 620 of the workstation 600 may authenticatethe X-ray detector based on at least one selected from the uniqueinformation and the specification information included in theidentification information of the X-ray detector and may set the assignindicator information of the X-ray detector based on the positioninformation included in the same identification information.

If the position information of the X-ray detector at the point in timewhen the X-ray detector is authenticated is stand position information,the X-ray detector may have a size and specifications that enable it tobe combined with a stand type receptor. As another example, if theposition information of the X-ray detector at the point in time when theX-ray detector is authenticated is table position information, the X-raydetector may have a size and specifications that enable it to becombined with a table type receptor. Accordingly, a user may easilyascertain the type of a receptor to which the X-ray detector iscombinable, by referring to an assign indicator displayed on the X-raydetector.

The output unit 630 may display assign indicator information 870 of theX-ray detector that has been set by the controller 620. For example, theoutput unit 630 may display the assign indicator information 870 of theX-ray detector via the UI image 850. The output unit 630 may alsodisplay the assign indicator information setting criterion 860 via theUI image 850.

The input unit 640 may receive an input for re-setting the assignindicator information 871, the assign indicator information 872, andassign indicator information 873 that have been set by the controller620. For example, the input unit 640 may receive an input for re-settingthe assign indicator information of the X-ray detector corresponding tothe table position information 861 to be a red color, via a UI image.The controller 620 may also re-set the assign indicator information ofthe X-ray detector in response to the input received by the input unit640. The input unit 640 may receive an input for re-setting all of theassign indicator information 871, the assign indicator information 872,and the assign indicator information 873 to be an identical color.

The input unit 640 may also receive an input for re-setting the assignindicator information setting criterion 860 set by the controller 620.For example, the input unit 640 may receive an input for re-setting theassign indicator information setting criterion 860 to be a detector SN.Then, the controller 620 may re-set the assign indicator informationsetting criterion 860 of the X-ray detector, in response to the inputreceived by the input unit 640.

The input unit 640 may also receive an input for adding assign indicatorinformation of the X-ray detector. For example, when the input unit 640receives an input for selecting an addition icon 880, the controller 620may additionally set assign indicator information of a green color foran X-ray detector of which position information is not ascertained.

The input unit 640 may also receive an input of deleting assignindicator information of the X-ray detector. For example, the controller620 may delete predetermined assign indicator information in response toan input of selecting a deletion icon 890 that the input unit 640 hasreceived.

FIG. 9 illustrates operations of X-ray detectors according to the assignindicator information 871, the assign indicator information 872, and theassign indicator information 873 of FIG. 8.

In detail, an X-ray detector 900 corresponding to stand positioninformation may receive the assign indicator information 871, an X-raydetector 910 corresponding to table position information may receive theassign indicator information 872, and an X-ray detector 920corresponding to portable position information may receive the assignindicator information 873.

An output unit of the X-ray detector 900 having the stand positioninformation may display an assign indicator of a yellow color based onthe assign indicator information 871 received by a receiver thereof, anoutput unit of the X-ray detector 910 having the table positioninformation may display an assign indicator of a violet color based onthe assign indicator information 872 received by a receiver thereof, andan output unit of the X-ray detector 920 having the portable positioninformation may display an assign indicator of a blue color based on theassign indicator information 873 received by a receiver thereof.

The receivers of the X-ray detectors 900, 910, and 920 may also receivere-setting information used to reset the displayed assign indicators,respectively. For example, the receiver of the X-ray detector 900 havingthe stand position information may receive re-setting information usedto reset the assign indicator to be a red color. Then, the output unitof the X-ray detector 900 having the stand position information maydisplay an assign indicator of a red color.

As described above, a user may efficiently select an X-ray detectorsuitable for imaging environment by referring to the assign indicatorsdisplayed on the output units of the X-ray detectors 900, 910, and 920.For example, when an X-ray detector combinable with the table typereceptor 290 is needed, a user may select the X-ray detector 910 thatdisplays the assign indicator of a violet color.

FIG. 10 illustrates an operation in which the workstation 600 of FIG. 6sets assign indicator information of an X-ray detector based on uniqueinformation of the X-ray detector. In detail, FIG. 10 illustrates a UIimage 1050 displayed on the output unit 630 of the workstation 600.

The UI image 1050 of FIG. 10 may correspond to the UI image 800 of FIG.8. Thus, a repeated description thereof will be omitted.

Referring to FIGS. 6 and 10, the receiver 610 of the workstation 600 mayreceive identification information of the X-ray detector that includesat least one selected from the unique information of the X-ray detectorand specification information of the X-ray detector. In contrast withFIG. 8, the identification information of the X-ray detector may notinclude position information of the X-ray detector.

The controller 620 of the workstation 600 may authenticate the X-raydetector based on at least one selected from the unique information andthe specification information of the X-ray detector which have beenreceived by the receiver 610. For example, the workstation 600 mayauthenticate the X-ray detector based on a detector SN 1002 of the X-raydetector.

The output unit 630 of the workstation 600 may display a list 1020 ofX-ray detectors 1021, 1022, and 1023 that have been authenticated by theworkstation 600, via the UI image 1050. The output unit 630 of theworkstation 600 may display detailed identification information 1010 ofthe X-ray detector 1021 selected from the list 1020 of authenticatedX-ray detectors.

The controller 620 of the workstation 600 may set assign indicatorinformation of the authenticated X-ray detector 1021 based on an IPaddress 1011 of the X-ray detector 1021. In other words, the controller620 may set the IP address 1011 of the X-ray detector 1021 to be anassign indicator information setting criterion.

In general, an X-ray detector has a unique IP address. Accordingly, thecontroller 620 may classify respective IP addresses of the authenticatedX-ray detectors 1021, 1022, and 1023 and set unique assign indicatorinformation for each of the authenticated X-ray detectors 1021, 1022,and 1023. However, when the authenticated X-ray detectors 1021, 1022,and 1023 have identical IP addresses, the controller 620 may setidentical assign indicator information for each of the authenticatedX-ray detectors 1021, 1022, and 1023.

For example, as described in further detail later with reference to FIG.11, the controller 620 may set assign indicator information 1013 of ayellow color for the X-ray detector 1021 having the IP address 1011 of191.168.197.80, set assign indicator information (not shown) of a violetcolor for the X-ray detector 1022 having an IP address (not shown) of191.168.197.81, and set assign indicator information (not shown) of ablue color for the X-ray detector 1023 having an IP address (not shown)of 191.168.197.82.

The input unit 640 may receive an input for re-setting the assignindicator information 1013 that has been set by the controller 620. Forexample, the input unit 640 may receive an input for re-setting theassign indicator information 1013 of the X-ray detector 1021corresponding to the IP address 1011 of 191.168.197.80 to be a redcolor, via a UI image (not shown). The controller 620 may also re-setthe assign indicator information of the X-ray detector in response tothe input received by the input unit 640.

FIG. 11 illustrates respective operations of X-ray detectors 1100, 1110,and 1120 according to the assign indicator information of FIG. 10.

In detail, receivers of the X-ray detectors 1100, 1110, and 1120respectively receive the assign indicator information of FIG. 10 set bythe workstation 600.

Based on the assign indicator information received by the receivers, anoutput unit of X-ray detector 1100 having the IP address of191.168.197.80 may display an assign indicator of a yellow color, anoutput unit of X-ray detector 1110 having the IP address of191.168.197.81 may display an assign indicator of a violet color, and anoutput unit of X-ray detector 1120 having the IP address of191.168.197.82 may display an assign indicator of a blue color.

The receivers of the X-ray detectors 1100, 1110, and 1120 may alsoreceive re-setting information used to reset the displayed assignindicators, respectively. For example, the receiver of the X-raydetector 1100 having the IP address of 191.168.197.80 may receivere-setting information used to reset the assign indicator to be a redcolor. Then, the output unit of the X-ray detector 1100 may display anassign indicator of a red color.

As described above, a user may efficiently select an X-ray detectorsuitable for imaging environment by referring to the assign indicatorsdisplayed on the X-ray detectors 1100, 1110, and 1120. For example, whenX-ray detectors display respective unique assign indicators according toIP addresses, a user may efficiently select a frequently-used X-raydetector according to imaging environments by referring to therespective unique assign indicators of the X-ray detectors.

FIG. 12 illustrates an operation in which the workstation 600 of FIG. 6sets assign indicator information of an X-ray detector based onidentification information of a network to which the X-ray detector hasbeen connected. In detail, FIG. 12 illustrates a UI image 1200 displayedon the output unit 630 of the workstation 600. In detail, the outputunit 630 may display identification information 1210 of the network towhich the X-ray detector has been connected, and assign indicatorinformation 1220 of the X-ray detector, via the UI image 1200.

When an X-ray detector is separable from an X-ray apparatus, a user mayuse the X-ray detector in different X-ray apparatuses existing in aplurality of X-ray imaging rooms. Thus, the user needs to check an X-rayimaging room including an initially-authenticated X-ray detector inorder to efficiently manage X-ray detectors.

For example, when different X-ray imaging rooms use different networks,the identification information of a network to which an X-ray detectorhas been connected when it is initially authenticated may be an assignindicator information setting criterion.

Referring to FIGS. 6 and 12, the receiver 610 of the workstation 600 mayreceive the identification information of the X-ray detector thatincludes at least one selected from the unique information of the X-raydetector and the specification information of the X-ray detector andfurther includes the identification information of the network to whichthe X-ray detector has been connected. In contrast with FIG. 8, theidentification information of the X-ray detector may not includeposition information of the X-ray detector.

The controller 620 of the workstation 600 may authenticate the X-raydetector based on at least one selected from the unique information andthe specification information of the X-ray detector which have beenreceived by the receiver 610. For example, the workstation 600 mayauthenticate the X-ray detector based on a detector SN of the X-raydetector.

The controller 620 of the workstation 600 may set the assign indicatorinformation 1220 of the authenticated X-ray detector based on theidentification information 1210 of the network to which the X-raydetector has been connected. In other words, the controller 620 may setthe identification information 1210 of the network to which the X-raydetector has been connected to be an assign indicator informationsetting criterion.

For example, the identification information of the network to which theX-ray detector has been connected may include a service set identifier(SSID). An SSID is a unique identifier of a 32 byte length that is addedto the header of each packet that is transmitted via a wireless LANincluded in an X-ray imaging room, and may be used as a password whenwireless devices such as wireless X-ray detectors are connected to abasic service set (BSS). Since an SSID distinguishes a wireless LAN(e.g., the wireless LAN of a first X-ray imaging room) from anotherwireless LAN (e.g., the wireless LAN of a second X-ray imaging room),all APs or wireless devices that are trying to access a predeterminedwireless LAN need to use an identical SSID. If a wireless device doesnot know the unique SSID of a BSS, the wireless device cannot access theBSS. Accordingly, such an SSID may be used as the identificationinformation of an imaging space.

For example, the controller 620 may set the assign indicator information1220, which is a red color, for the X-ray detector corresponding to theidentification information 1210 of the network that indicates the SSIDof the first imaging room.

The input unit 640 may receive an input for re-setting the assignindicator information 1220 of the X-ray detector that has been set bythe controller 620. For example, the input unit 640 may receive an inputfor re-setting the assign indicator information 1220 of the X-raydetector to be a blue color, via a UI image (not shown). The controller620 may also re-set the assign indicator information 1220 of the X-raydetector in response to the input received by the input unit 640.

FIG. 13 illustrates respective operations of X-ray detectors 1301, 1302,and 1303 according to the assign indicator information of FIG. 12.

In detail, receivers (not shown) of the X-ray detectors 1301, 1302, and1303 respectively receive the assign indicator information of FIG. 12set by the workstation 600. Based on the assign indicator informationreceived by the receivers, output units 1311, 1312, and 1313 of theX-ray detectors 1301, 1302, and 1303 having identification informationof a network indicating the SSID of a first imaging room may display anassign indicator of a red color.

The receivers of the X-ray detectors 1301, 1302, and 1303 may alsoreceive re-setting information used to reset the displayed assignindicators, respectively.

As described above, a user may check an X-ray imaging room including aninitially-authenticated X-ray detector and efficiently manage X-raydetectors, by referring to the assign indicators of the X-ray detectors1301, 1302, and 1303.

The X-ray detectors 1301, 1302, and 1303 may include a plurality ofoutput units 1311-1313, a plurality of output units 1321-1323, and aplurality of output units 1331-1333, respectively, in order for each ofthe X-ray detectors 1301, 1302, and 1303 to display a plurality ofassign indicators. For example, the output units 1311, 1312, and 1313 ofthe X-ray detectors 1301, 1302, and 1303 may display assign indicatorsset based on identification information of networks, and the otheroutput units 1321-1323 and 1331-1333 thereof may display assignindicators set based on another assign indicator information settingcriterion.

For example, the output unit 1321 of the X-ray detector 1301 havingstand position information during authentication may display an assignindicator of a yellow color, like the output unit of the X-ray detector900 of FIG. 9. The output unit 1322 of the X-ray detector 1302 havingtable position information during authentication may display an assignindicator of a violet color, like the output unit of the X-ray detector910 of FIG. 9. The output unit 1323 of the X-ray detector 1303 havingportable position information during authentication may display anassign indicator of a blue color, like the output unit of the X-raydetector 920 of FIG. 9.

As another example, the output units 1331, 1332, and 1333 of the X-raydetectors 1301, 1302, and 1303 may display assign indicators set basedon respective specification information thereof, respectively.

FIG. 14 is a block diagram for describing respective operations of aworkstation 1400 and an X-ray detector 1410 according to anotherexemplary embodiment.

In operation S1420, a controller of the X-ray detector 1410 may acquirestate information 1480 of the X-ray detector 1410.

Throughout the specification, state information of an X-ray detectorrefers to information about the conditions under which the X-raydetector detects an X-ray. For example, the state information of theX-ray detector may include at least one selected from residual batterycapacity information of the X-ray detector, communication sensitivityinformation of the X-ray detector, and information about whether theX-ray detector has been activated.

In operation S1450, an output unit 1411 b of the X-ray detector 1410 maydisplay the state information 1480 and an assign indicator of the X-raydetector 1410. For example, the output unit 1411 b of the X-ray detector1410 may alternately display the state information 1480 and the assignindicator of the X-ray detector 1410. Alternatively, the output unit1411 b of the X-ray detector 1410 may simultaneously display the stateinformation 1480 and the assign indicator of the X-ray detector 1410.For example, the X-ray detector 1410 may display residual batterycapacity information and communication sensitivity information on anassign indicator of a yellow color. A method by which the output unit1411 b of the X-ray detector 1410 displays the state information 1480and the assign indicator of the X-ray detector 1410 will be described infurther detail later with reference to FIG. 15.

A user may check the state information of the X-ray detector 1410displayed on the output unit 1411 b of the X-ray detector 1410 and mayefficiently manage X-ray detectors.

In operation S1430, a receiver of the workstation 1400 may receive thestate information 1480 of the X-ray detector 1410. In operation S1440,an output unit of the workstation 1400 may display an X-ray detectoricon 1401 representing the state information 1480 of the X-ray detector1410 and assign indicator information of the X-ray detector 1410.

In detail, a transmitter of the X-ray detector 1410 may transmit a datapacket including the state information 1480 of the X-ray detector 1410and identification information 1490 of the X-ray detector 1410 to theworkstation 1400. The identification information 1490 of the X-raydetector 1410 may include at least one selected from unique information1491 and specification information 1492 of the X-ray detector 1410.

The receiver of the workstation 1400 may receive the data packetincluding the state information 1480 of the X-ray detector 1410 andidentification information 1490 of the X-ray detector 1410, and acontroller of the workstation 1400 may identify the X-ray detector 1410that has transmitted the data packet, based on the identificationinformation 1490 of the X-ray detector 1410. The output unit of theworkstation 1400 may display the X-ray detector icon 1401 representingthe state information 1480 of the X-ray detector 1410 specified by thecontroller thereof and the assign indicator information of the X-raydetector 1410.

Alternatively, the output unit of the workstation 1400 may display anX-ray detector icon 1401 representing the identification information1490 of the X-ray detector 1410 specified by the controller thereof andthe assign indicator information of the X-ray detector 1410. The X-raydetector icon 1401 will be described in further detail later withreference to FIG. 16.

A user may check the state information 1480 of the X-ray detector 1410via the X-ray detector icon 1401 and may efficiently manage X-raydetectors. In addition, the user may easily activate the X-ray detector1410 or may connect or block communication with the X-ray detector 1410,via the X-ray detector icon 1401.

As described above, a user may efficiently select an X-ray detectorsuitable for imaging environment and also may efficiently manage thestates of X-ray detectors, by using the output unit 1411 b of the X-raydetector 1410 and the output unit of the workstation 1400.

FIGS. 15A and 15B illustrate X-ray detectors 1500 a and 1500 b on whichan assign indicator and state information are displayed.

An output unit 1510 a of the X-ray detector 1500 a may alternatelydisplay state information and an assign indicator of the X-ray detector1500 a.

In detail, a controller of the X-ray detector 1500 a may set informationthat is to be output by the output unit 1510 a of the X-ray detector1500 a, based on the state information of the X-ray detector 1500 a. Forexample, the controller of the X-ray detector 1500 a may control theoutput unit 1510 a thereof to display a green color when residualbattery capacity information is 50 to 100%, to display an orange colorwhen the residual battery capacity information is 10 to 49%, and todisplay a red color when the residual battery capacity information is 0to 9%.

The controller of the X-ray detector 1500 a may control the output unit1510 a thereof to alternately display the assign indicator and the stateinformation. For example, the output unit 1510 a of the X-ray detector1500 a, for which the residual battery capacity is 100% and an assignindicator of a yellow color is set, may alternately display a yellowcolor as the assign indicator and a green color as the residual batterycapacity information.

An output unit 1510 b of the X-ray detector 1500 b may simultaneouslydisplay state information and an assign indicator of the X-ray detector1500 b. For example, the X-ray detector 1500 b may display a residualbattery capacity information icon 1510 b and a communication sensitivityinformation icon 1530 b on an assign indicator of a yellow color.

The output unit 1520 b of the X-ray detector 1500 b may flicker theassign indicator based on the state information of the X-ray detector1500 b. For example, when the X-ray detector 1500 b is activated, theresidual battery capacity information of the X-ray detector 1500 b is 9%or less, or the communication sensitivity of the X-ray detector 1500 bis weak, the output unit 1510 b of the X-ray detector 1500 b may flickerthe assign indicator.

FIG. 16 illustrates an operation in which the workstation 600 of FIG. 6displays receptor information 1610 and an X-ray detector icon 1630,according to an exemplary embodiment.

For example, the receptor information may display an icon 1611 foractivating an X-ray detector corresponding to stand positioninformation, an icon 1612 for activating an X-ray detector correspondingtable position information, and an icon 1630 for activating an X-raydetector corresponding to portable position information.

For example, the output unit 630 of the workstation 600 may display theX-ray detector icon 1630 on a UI image 1600 for setting X-ray imagingconditions. In detail, the output unit 630 of the workstation 600 maydisplay the X-ray detector icon 1630 on a task bar 1620 of the UI image1600.

The X-ray detector icon 1630 may represent identification information ofan X-ray detector and assign indicator information thereof. In detail,the X-ray detector icon 1630 may include a sub-icon that represents theidentification information of the X-ray detector and the assignindicator information thereof.

For example, when an assign indicator of the X-ray detector is a yellowcolor and the X-ray detector corresponds to portable positioninformation, the X-ray detector icon 1630 may include a sub-icon 1634 ofa character P with a yellow background. The sub-icon 1634 representingthe position information of the X-ray detector may indicate a currentposition of the X-ray detector regardless of position information of theX-ray detector at the point in time when the X-ray detector isauthenticated.

Based on specification information of the X-ray detector, the X-raydetector icon 1630 may include a sub-icon 1633 representing that theX-ray detector is a wireless X-ray detector.

The X-ray detector icon 1630 may further include a sub-icon thatrepresents state information of the X-ray detector. For example, theX-ray detector icon 1630 may include a sub-icon 1632 representingresidual battery capacity information of the X-ray detector and asub-icon 1631 representing communication sensitivity information of theX-ray detector.

As described above, a user may easily activate the X-ray detector or mayconnect or block communication with the X-ray detector, via the X-raydetector icon 1630.

In addition, the user may ascertain all of the assign indicator of theX-ray detector and the identification information or state informationof the X-ray detector via the X-ray detector icon 1630, therebyefficiently manage and control X-ray detectors.

FIGS. 17A-18B illustrate an operation in which the workstation 600 ofFIG. 6 activates an X-ray detector, according to one or more exemplaryembodiments.

FIG. 17A illustrates an operation in which the workstation 600 activatesan X-ray detector 1740 a displaying an assign indicator of a yellowcolor and corresponding to current portable position information.

In detail, since the X-ray detector 1740 a has been combined with thestand type receptor 280 when being authenticated by the workstation 600,the X-ray detector 1740 a displays the assign indicator of a yellowcolor, like the X-ray detector 900 of FIG. 9. However, since the X-raydetector 1740 a is not currently combined with any receptor, currentposition information of the X-ray detector 1740 a corresponds toportable position information.

Icons included in receptor information 1700 a may correspond to thoseincluded in receptor information 1610 of the UI screen 1600 of FIG. 16.In detail, an icon 1710 a for activating an X-ray detector correspondingto stand position information corresponds to the icon 1611 of FIG. 16,an icon 1720 a for activating an X-ray detector corresponding to tableposition information corresponds to the icon 1612 of FIG. 16, and anicon 1730 a for activating an X-ray detector corresponding to portableposition information corresponds to the icon 1613 of FIG. 16. Forconvenience of explanation, illustration of a portion of the UI screen1600 except for the receptor information 1700 a is omitted.

An output unit 1750 a of the X-ray detector 1740 a may flicker theassign indicator when the X-ray detector 1740 a is activated.

The output unit 630 of the workstation 600 may display an X-ray detectoricon 1760 a based on identification information of the X-ray detector1740 a, assign indicator thereof, and state information thereof. Indetail, the X-ray detector icon 1760 a may represent that the X-raydetector 1740 a is a wireless X-ray detector, corresponds to currentportable position information, displays the assign indicator of a yellowcolor, and has high communication sensitivity and a residual batterycapacity of 100%. When the X-ray detector 1740 a is activated, asub-icon 1770 a representing the assign indicator may flicker.

FIG. 17B illustrates an operation in which the workstation 600 activatesan X-ray detector 1740 b displaying an assign indicator of a violetcolor and corresponding to current portable position information.

In detail, since the X-ray detector 1740 b has been combined with thetable type receptor 290 when being authenticated by the workstation 600,the X-ray detector 1740 b displays the assign indicator of a violetcolor, like the X-ray detector 910 of FIG. 9. However, since the X-raydetector 1740 b is not currently combined with any receptors, currentposition information of the X-ray detector 1740 b corresponds toportable position information.

An output unit 1750 b of the X-ray detector 1740 b may flicker theassign indicator when the X-ray detector 1740 b is activated.

The output unit 630 of the workstation 600 may display an X-ray detectoricon 1760 b based on identification information of the X-ray detector1740 b, assign indicator thereof, and state information thereof. Indetail, the X-ray detector icon 1760 b may represent that the X-raydetector 1740 b is a wireless X-ray detector, corresponds to currentportable position information, displays the assign indicator of a violetcolor, and has high communication sensitivity and a residual batterycapacity of 100%. When the X-ray detector 1740 b is activated, asub-icon 1770 b representing the assign indicator may flicker.

FIG. 17C illustrates an operation in which the workstation 600 activatesan X-ray detector 1740 c displaying an assign indicator of a blue colorand corresponding to current portable position information.

In detail, since the X-ray detector 1740 c has not been combined withany receptors when being authenticated by the workstation 600 and thuscorresponds to portable position information, the X-ray detector 1740 cdisplays the assign indicator of a blue color, like the X-ray detector920 of FIG. 9. Furthermore, since the X-ray detector 1740 c is notcurrently combined with any receptors, current position information ofthe X-ray detector 1740 c corresponds to portable position information.

An output unit 1750 c of the X-ray detector 1740 c may flicker theassign indicator when the X-ray detector 1740 c is activated.

The output unit 630 of the workstation 600 may display an X-ray detectoricon 1760 c based on identification information of the X-ray detector1740 c, assign indicator thereof, and state information thereof. Indetail, the X-ray detector icon 1760 c may represent that the X-raydetector 1740 c is a wireless X-ray detector, corresponds to currentportable position information, displays the assign indicator of a bluecolor, and has high communication sensitivity and a residual batterycapacity of 100%. When the X-ray detector 1740 c is activated, asub-icon 1770 c representing the assign indicator may flicker.

FIG. 18A illustrates an operation in which the workstation 600 activatesan X-ray detector 1840 a that displays an assign indicator of a yellowcolor and has been currently combined with a stand type receptor 1880 a.

In detail, since the X-ray detector 1840 a has been combined with thestand type receptor 1880 a when being authenticated by the workstation600, the X-ray detector 1840 a displays the assign indicator of a yellowcolor, like the X-ray detector 900 of FIG. 9. Furthermore, since theX-ray detector 1840 a is currently combined with the stand type receptor1880 a, current position information of the X-ray detector 1840 acorresponds to stand position information.

An output unit 1850 a of the X-ray detector 1840 a may flicker theassign indicator when the X-ray detector 1840 a is activated.

The output unit 630 of the workstation 600 may display an X-ray detectoricon 1860 a based on identification information of the X-ray detector1840 a, assign indicator thereof, and state information thereof. Indetail, the X-ray detector icon 1860 a may represent that the X-raydetector 1840 a is a wireless X-ray detector, corresponds to currentstand position information, displays the assign indicator of a yellowcolor, and has high communication sensitivity and a residual batterycapacity of 9% or less. When the X-ray detector 1840 a is activated, asub-icon 1870 a representing the assign indicator may flicker.

FIG. 18B illustrates an operation in which the workstation 600 activatesan X-ray detector 1840 b that displays an assign indicator of a violetcolor and has been currently combined with a table type receptor 1880 b.

In detail, since the X-ray detector 1840 b has been combined with thetable type receptor 1880 b when being authenticated by the workstation600, the X-ray detector 1840 b displays the assign indicator of a violetcolor, like the X-ray detector 910 of FIG. 9. Furthermore, since theX-ray detector 1840 b is currently combined with the table type receptor1880 b, current position information of the X-ray detector 1840 bcorresponds to table position information.

An output unit 1850 b of the X-ray detector 1840 b may flicker theassign indicator when the X-ray detector 1840 b is activated.

The output unit 630 of the workstation 600 may display an X-ray detectoricon 1860 b based on identification information of the X-ray detector1840 b, assign indicator thereof, and state information thereof. Indetail, the X-ray detector icon 1860 b may represent that the X-raydetector 1840 b is a wireless X-ray detector, corresponds to currenttable position information, displays the assign indicator of a violetcolor, and has high communication sensitivity and a residual batterycapacity of 9% or less. When the X-ray detector 1840 b is activated, asub-icon 1870 b representing the assign indicator may flicker.

FIGS. 19A-19C illustrate an X-ray detector 1900 and an optical waveguide1910 included therein, according to an exemplary embodiment.

FIG. 19A illustrates the X-ray detector 1900 capable of displaying anassign indicator by using the optical waveguide 1910 positioned on atleast one edge of the X-ray detector 1900.

FIG. 19B is a magnified view of a portion of the optical waveguide 1910,and FIG. 19C illustrates a cross-section cut along a dotted line 1911 ofthe optical waveguide 1910 of FIG. 19B.

In detail, an output unit of the X-ray detector 1900 may include a lightsource 1920 generating light of a color indicated by assign indicatorinformation set by a workstation, and the optical waveguide 1910positioned on at least one edge of the X-ray detector 1900 and guidingthe light generated by the light source 1920 to propagate in a certaindirection.

The light source 1920 may generate light beams of various colorsincluding the color indicated by the assign indicator information set bythe workstation. For example, the light source 1920 may be an LCD or anLED. A controller of the X-ray detector 1900 may control the lightsource 1920 to generate the color indicated by the assign indicatorinformation set by the workstation.

The optical waveguide 1910 may guide the light generated by the lightsource 1920 to mostly propagate in a certain direction, by using a totalreflection principle.

The optical waveguide 1910 may also include a first reflector 1930 forguiding light to propagate in a certain direction within the opticalwaveguide 1910. In detail, the first reflector 1930 may set thedirection in which light beams generated by the light source 1920 mainlypropagate, by reflecting light beams 1921 and 1923 from among the lightbeams generated by the light source 1920.

In general, in the field of optical communication, an optical waveguideguides light to a destination by minimizing light loss via totalreflection which is the main function of the optical waveguide. However,the optical waveguide 1910 included in the output unit of the X-raydetector 1900 needs to propagate some of the light beams generated bythe light source 1920 to the outside so that a user may check an assignindicator. Accordingly, the optical waveguide 1910 may include apredetermined structure or reflector for propagating some of the lightbeams generated by the light source 1920 to the outside. For example,the optical waveguide 1910 may include a transparent body such as atransparent glass or a transparent plastic.

The optical waveguide 1910 may also include an irregularity 1940 on oneside thereof, in order to propagate some of the light beams generated bythe light source 1920 to the outside. The irregularity 1940 of theoptical waveguide 1910 may be repeatedly formed on one side of theoptical waveguide 1910.

For example, as illustrated in FIGS. 19B and 19C, when an internal sideof the optical waveguide 1910 is formed as the irregularity 1940, lightbeams 1924 and 1925 reflected by the irregularity 1940 may be incidentupon an external side thereof at a reduced angle. Thus, the light beams1924 and 1925 reflected by the irregularity 1940 may be propagated tothe outside, and a user may check the assign indicator via the opticalwaveguide.

On the other hand, when the external side of the optical waveguide 1910is formed as an irregularity, the angle at which light is incident uponthe irregularity may be reduced. Thus, some light beams incident uponthe irregularity may be propagated to the outside, and a user may checkthe assign indicator via the optical waveguide 1910.

The optical waveguide 1910 may include an elastic body. In detail, theoptical waveguide 1910 may include an elastic body capable of performinga buffering function. When the optical waveguide 1910 includes theelastic body, the X-ray detector 1900 may not need a buffer material.

When the output unit of the X-ray detector 1900 displays the assignindicator via the optical waveguide 1910, a user may check the assignindicator of the X-ray detector 1900 at various locations. Thus, theuser may more efficiently select an X-ray detector suitable for aphotographing environment when the output unit of the X-ray detector1900 displays the assign indicator by using the optical waveguide 1910rather than when displaying the assign indicator by simply using an LEDor a light-emitting device.

FIGS. 20A and 20B are cross-sectional views of optical waveguides 2010 aand 2010 b according to another exemplary embodiment.

The optical waveguides 2010 a and 2010 b of FIGS. 20A and 20B maycorrespond to the optical waveguide 1910 of FIGS. 19A-19C. In detail, alight source 2020 a, a first reflector 2030 a, light beams 2021 and 2023reflected by the first reflector 2030 a, and light beams 2024 a and 2025a reflected by an irregularity 2040 a of FIGS. 20A and 20B maycorrespond to the light source 1920, the first reflector 1930, the lightbeams 1921 and 1923 reflected by the first reflector 1930, and the lightbeams 1924 and 1925 reflected by the irregularity 1940 of FIGS. 19A-19C,respectively. Thus, a repeated description thereof will be omitted.

Since light beams generated by the light source 2020 a propagate to theoutside while traveling along the optical waveguide 2010 a, the amountof light existing within the optical waveguide 2010 a decreases in adirection away from the light source 2020 a.

Thus, as illustrated in FIG. 19C, when a repetition interval 1960 of theirregularity 1940 of the optical waveguide 1910 is constant in adirection away from the light source 1920, an amount 1950 of light thatpropagates to the outside may decrease in the direction away from thelight source 1920. Accordingly, stronger light may propagate in adirection closer to the light source 1920, and weaker light maypropagate in a direction away from the light source 1920. However, it isdesirable to have a constant amount of light propagates to the outsideregardless of distances from the light source 1920.

FIG. 20A illustrates a cross-section of the optical waveguide 2010 aincluding the irregularity 2040 a of which a repetition interval 2080shortens in a direction away from the light source 2020 a. In detail,the irregularity 2040 a of the optical waveguide 2010 a may be formed onone side of the optical waveguide 2010 a, and the repetition interval2080 of the irregularity 2040 a of the optical waveguide 2010 a mayshorten in the direction away from the light source 2020 a.

When the repetition interval 2080 of the irregularity 2040 a of theoptical waveguide 2010 a may shorten in the direction away from thelight source 2020 a, although the amount of light existing within theoptical waveguide 2010 a decreases, an amount 2070 of light thatpropagates to the outside may be constant.

In detail, as the repetition interval 2080 of the irregularity 2040 ashortens, the probability that the light beams generated by the lightsource 2020 a propagate to the outside of the optical waveguide 2010 aincreases. In other words, as the repetition interval 2080 of theirregularity 2040 a shortens, the probability of total reflection oflight decreases. Thus, as the repetition interval 2080 of theirregularity 2040 a shortens, although the amount of light existingwithin the optical waveguide 2010 a decreases, the probability thatlight propagates to the outside of the optical waveguide 2010 aincreases, and thus the amount 2070 of light that propagates to theoutside may be constant regardless of distances from the light source2020 a.

FIG. 20B illustrates a cross-section of the optical waveguide 2010 bincluding a second reflector 2090.

The second reflector 2090 may be positioned at one side of the opticalwaveguide 2010 b and may propagate light generated by a light source2020 b to the outside of the optical waveguide 2010 b. In detail, whenthe second reflector 2090 is positioned on an internal side of theoptical waveguide 2010 b, light beams 2024 b and 2025 b reflected by thesecond reflector 2090 may be incident upon an external side of theoptical waveguide 2010 b at a decreased angle and thus propagate to theoutside of the optical waveguide 2010 b.

The second reflector 2090 may be formed of a material having a differentrefractive index from that of the optical waveguide 2010 b. The secondreflector may be a mirror, a sticker, paint, or the like.

According to another exemplary embodiment, the optical waveguide 2010 bmay include the irregularity 2040 a on one side thereof and the secondreflector 2090 on another side thereof.

FIG. 21 is a flowchart of a method 2100 of capturing an X-ray image,according to an exemplary embodiment.

The operations included in the method 2100 are the same as theoperations performed in the workstation 600 and the X-ray detector 700described above with reference to FIGS. 5-20B. Accordingly, descriptionsof the method 2100 that are the same as those made with reference toFIGS. 5-20B are not repeated herein.

The method 2100 may include operation 52100 of setting assign indicatorinformation of the X-ray detector 700, based on the identificationinformation of the X-ray detector 700. The operation 2100 may beperformed by the workstation 600.

The method 2100 may further include operation 52200 of displaying theassign indicator on the X-ray detector 700 based on the assign indicatorinformation of the X-ray detector 700. The operation 52200 may beperformed by the X-ray detector 700.

The method 2100 may further include operation 52300 of capturing theX-ray image by using the X-ray detector 700 on which the assignindicator has been displayed.

As described above, a user may efficiently classify a plurality of X-raydetectors and efficiently select an X-ray detector suitable or an X-rayphotographing environment, by using a workstation and an X-ray apparatusaccording to one or more exemplary embodiments.

The exemplary embodiments can be written as computer programs and can beimplemented in general-use digital computers that execute the programsusing a computer readable recording medium. For example, it isunderstood that in exemplary embodiments, one or more units and/orcontrollers of the above-described apparatuses (e.g., 100, 110) caninclude circuitry, a processor, a microprocessor, etc., and may executea computer program stored in a computer-readable medium.

Examples of the computer readable recording medium include magneticstorage media (e.g., ROM, floppy disks, hard disks, etc.), opticalrecording media (e.g., CD-ROMs, or DVDs), etc.

The exemplary embodiments should be considered in descriptive sense onlyand not for purposes of limitation. Descriptions of features or aspectswithin each exemplary embodiment should typically be considered asavailable for other similar features or aspects in other exemplaryembodiments.

While the present invention has been particularly shown and describedwith reference to exemplary embodiments thereof, it will be understoodby those of ordinary skill in the art that various changes in form anddetails may be made therein without departing from the spirit and scopeof the present invention as defined by the appended claims.

What is claimed is:
 1. A workstation that is operable with a pluralityof X-ray detectors including a first X-ray detector, the workstationcomprising: a controller configured to set a first color of the firstX-ray detector corresponding to identification information of the firstX-ray detector, wherein the first color is displayed on the first X-raydetector and is settable such that the plurality of X-ray detectorsrespectively output different colors from each other; an output unitconfigured to display a user interface screen including a first X-raydetector icon that represents position information of the first X-raydetector and the first color; and a communication unit configured totransmit information for the first color to the first X-ray detector. 2.The workstation of claim 1, further comprising an input unit configuredto receive an input for setting the first color of the first X-raydetector, wherein the controller is further configured to set the firstcolor in response to the input.
 3. The workstation of claim 1, whereinthe identification information of the first X-ray detector furthercomprises at least one selected from: unique information comprising atleast one of a serial number (SN) and an Internet Protocol (IP) addressof the first X-ray detector; and specification information comprising atleast one of a size of the first X-ray detector and a type of a receptorwith which the first X-ray detector is combinable.
 4. The workstation ofclaim 3, wherein: the identification information of the first X-raydetector further comprises the position information of the first X-raydetector, and the controller is further configured to authenticate thefirst X-ray detector based on at least one selected from the uniqueinformation and the specification information of the first X-raydetector, and set the first color of the authenticated X-ray detector,based on the position information of the authenticated X-ray detector.5. The workstation of claim 4, wherein the position information of thefirst X-ray detector comprises at least one selected from stand positioninformation indicating that the first X-ray detector has been combinedwith a stand type receptor, table position information indicating thatthe first X-ray detector has been combined with a table type receptor,and portable position information indicating that the first X-raydetector is portable detector and has not been combined with anyreceptors.
 6. The workstation of claim 3, wherein: the identificationinformation of the first X-ray detector further comprises identificationinformation of a network to which the first X-ray detector has beenconnected, and the controller is further configured to authenticate thefirst X-ray detector based on at least one selected from the uniqueinformation and the specification information of the first X-raydetector, and set the first color of the authenticated X-ray detector,based on the identification information of the network to which theauthenticated X-ray detector has been connected.
 7. The workstation ofclaim 6, wherein the identification information of the network to whichthe first X-ray detector has been connected comprises a service setidentifier (SSID) of the network.
 8. The workstation of claim 1, whereinthe first X-ray detector icon including at least one of a symbol, acharacter, and an image indicating a position of the first X-raydetector with the first color.
 9. The workstation of claim 8, whereinwhen the first X-ray detector is located at a portable position, thefirst X-ray detector icon represents the portable position with thefirst color, when the first X-ray detector is located at a standposition, the first X-ray detector icon represents the stand positionwith the first color, and when the first X-ray detector is located at atable position, the first X-ray detector icon represents the tableposition with the first color.
 10. The workstation of claim 1, whereinthe first X-ray detector icon further represents state information ofthe first X-ray detector, and the output unit is further configured tomake the first X-ray detector icon flicker according to the stateinformation of the first X-ray detector.
 11. The workstation of claim10, wherein the state information of the first X-ray detector comprisesat least one selected from information about a residual battery capacityof the first X-ray detector, information about a communicationsensitivity of the first X-ray detector, and information about whetherthe first X-ray detector has been activated.
 12. The workstation ofclaim 1, wherein the controller automatically sets the first color basedon the identification information.
 13. The workstation of claim 1,wherein the first X-ray detector icon includes at least one of a symbol,a character and an image indicating whether the first X-ray detectorcurrently located at a position corresponding to either a standposition, a table position, or a portable position.
 14. An X-raydetector comprising: a communication unit configured to transmitidentification information of the X-ray detector to a workstation, andto receive information for a first color information corresponding tothe identification information which is set by the workstation from theworkstation after transmitting the identification information; and anoutput unit configured to visually output a light of the first colorbased on the received information for the first color, and wherein thefirst color is visual notification to guide a user of the workstation toselect one X-ray detector among a plurality of X-ray detectors which islocated at a stand position, a table position, or a portable position,and wherein the first color is different from another color that isoutput via another X-ray detector which is operable with theworkstation.
 15. The X-ray detector of claim 14, wherein: thecommunication unit is further configured to receive setting informationused to reset the first color, and the output unit is further configuredto change the first color based on the received setting information andoutput light of display the changed first color.
 16. The X-ray detectorof claim 14, wherein the transmitted identification informationcomprises at least one selected from unique information comprising atleast one of a serial number (SN) and an Internet Protocol (IP) addressof the X-ray detector, and specification information comprising at leastone of a size of the X-ray detector and a type of a receptor with whichthe X-ray detector is combinable.
 17. The X-ray detector of claim 16,wherein the communication unit further transmit position information ofthe X-ray detector to the workstation.
 18. The X-ray detector of claim17, wherein the position information of the X-ray detector comprises atleast one selected from information indicating that the X-ray detectorhas been combined with a stand type receptor, information indicatingthat the X-ray detector has been combined with a table type receptor,and information indicating that the X-ray detector has not been combinedwith any receptors.
 19. The X-ray detector of claim 16, wherein thetransmitted identification information further comprises identificationinformation of a network to which the X-ray detector has been connected.20. The X-ray detector of claim 14, further comprising a controllerconfigured to acquire state information of the X-ray detector, whereinthe output unit is further configured to display the acquired stateinformation of the X-ray detector and the first color.
 21. The X-raydetector of claim 20, wherein the acquired state information of theX-ray detector comprises at least one selected from information about aresidual battery capacity of the X-ray detector, information about acommunication sensitivity of the X-ray detector, and information aboutwhether the X-ray detector has been activated.
 22. The X-ray detector ofclaim 20, wherein the output unit is further configured to output lightflicker of the first color according to the acquired state informationof the X-ray detector.
 23. The X-ray detector of claim 14, wherein: theoutput unit further comprises a light source configured to generate thelight of the first color indicated by the received information for thefirst color.
 24. The X-ray detector of claim 23, wherein the output unitcomprises an optical waveguide which is positioned on at least one edgeof the X-ray detector and guides the light to propagate in a certaindirection, and wherein the optical waveguide comprises a first reflectorfor guiding the light to propagate in a certain direction within theoptical waveguide.
 25. The X-ray detector of claim 24, wherein one sideof the optical waveguide comprises an irregularity for propagating thelight to outside of the optical waveguide.
 26. The X-ray detector ofclaim 25, wherein the irregularity formed on the one side of the opticalwaveguide is repeated, and a repetition interval of the irregularityshortens in a direction away from the light source.
 27. The X-raydetector of claim 24, further comprising a second reflector which ispositioned on one side of the optical waveguide and propagates the lightto outside of the optical waveguide.
 28. The X-ray detector of claim 14,wherein the output unit further comprises a light source that generateslight beams of various colors including the light of the first colorindicated by the received information for the first color.
 29. The X-raydetector of claim 14, wherein the output unit comprises at least one LEDthat outputs light of the first color indicated by the receivedinformation for the first color.
 30. An X-ray system comprising: anX-ray apparatus comprising an X-ray radiation unit and a plurality ofX-ray detectors including a first X-ray detector; and a workstationconfigured to control the X-ray apparatus, wherein the workstationcomprises: a controller configured to set a first color of the firstX-ray detector corresponding to identification information of the firstX-ray detector, the first color is visually on the first X-ray detectorand is settable such that the plurality of X-ray detectors respectivelyoutput different colors from each other; an output unit configured todisplay a user interface screen including a first X-ray detector iconthat represents position information of the first X-ray detector and thefirst color which is set to the first X-ray detector; and a transmitterconfigured to transmit information for the first color to the firstX-ray detector.
 31. The X-ray system of claim 30, wherein the firstX-ray detector comprises: a transmitter configured to transmit theidentification information of the first X-ray detector to theworkstation; and a receiver configured to receive the information forthe first color from the workstation after the transmitter of the firstX-ray detector transmits the identification information of the firstX-ray detector to the workstation.